All India Class 9 Group

What is the difference between immunization and vaccination?

Sadhana Patel answered  •  3 hours ago

Immunization vs Vaccination




Definition:
- Immunization: Immunization is the process by which a person becomes protected against a disease through vaccination. It is a broader term that includes both vaccination and the natural immunity that develops after an infection.
- Vaccination: Vaccination is the administration of a vac
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If a+b+c=5and ab+bc +ca =10 then prove that a^3+b^3+c^3-3abc=-25?

Kritika Bose answered  •  4 hours ago


Proof:

Given:
a + b + c = 5
ab + bc + ca = 10

We need to prove:
a^3 + b^3 + c^3 - 3abc = -25

Proof:

Step 1: Cubing the given equation (a + b + c = 5)
(a + b + c)^3 = a^3 + b^3 + c^3 + 3(a^2b + ab^2 + b^2c + bc^2 + c^2a + ca^2) + 6abc

Step 2: Expanding the cubed equation<
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Read the text given below and answer the following questions:
There were two friends Ram and Raj living in the village. Raj’s mother looked after domestic chores. His father worked in an agricultural field. He helped his mother with domestic chores. He also looked after his younger brother and sister. His uncle had passed the matriculation examination, but was sitting idle in the house as he had no job. Raj’s mother and father were eager to teach Raj. They forced him to join the village school which he soon joined. He started studying and completed his higher secondary examination. His father persuaded him to continue his studies. He raised a loan for him to study a vocational course in computers. Raj was interested in studies from the beginning. With great enthusiasm he completed his course. After some time, he got a job in a private firm. He even designed a new kind of software. This software helped him increase the sale of the firm. His boss acknowledged his services and rewarded him with a promotion.
Ram was residing in the same village as Raj. Ram’s father was a fisherman. His father was no more and his mother sold fish to earn money to feed the family. She bought fish from the landowner’s pond and sold it in the nearby mandi. She could earn only ` 150 a day by selling fish. Ram became a patient of cancer. His mother could not afford to take him to the doctor. He could not go to school either. He was not interested in studies. He helped his mother in cooking and also looked after his younger brother. After some time, his mother fell sick and there was no one to look after her. There was no one in the family to support them.
Answer the following MCQs by choosing the most appropriate option:
Q. Raj’s education in the initial years of his life bore him the fruits in the later years in terms of a good job and salary. ______________ was an important input for the growth of Raj.
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Prakruti Iyer answered  •  6 hours ago

Importance of Education in Raj's Life:

Education played a crucial role in shaping Raj's future and helping him secure a good job and salary. Here's how education was an important input for the growth of Raj:

Empowerment:
- Education empowered Raj with knowledge and skills that enabled him to excel in his studies and later in his job.
- It provide
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Prakruti Iyer answered  •  6 hours ago

Meaning of Elegy

An elegy is a type of poem that mourns the loss of someone or something, typically expressing feelings of grief, sorrow, and lamentation. It is a form of lyric poetry that reflects on death and mortality, often commemorating or honoring the deceased.

Elegies are characterized by their somber tone, introspective nature, and reflective style. They
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What is retreating/post monsoon

Prakruti Iyer answered  •  6 hours ago

Retreating/Post Monsoon

Retreating monsoon, also known as post-monsoon, is a weather phenomenon that occurs when the southwest monsoon winds, which bring heavy rainfall to the Indian subcontinent during the summer months, begin to weaken and retreat. This period typically occurs from September to November, marking the transition from the rainy season to the dry season.
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कबीर दास जी ने बाह्यआडंबरो का विरोध कौन से सबद में किया है-
  • a)
    पहले
  • b)
    तीसरे
  • c)
    दूसरे
  • d)
    चौथे
Correct answer is option 'A'. Can you explain this answer?

Shivani Kaur answered  •  9 hours ago


Explanation:

a) The correct answer is option 'A'. In this question, we are looking for the correct choice among the given options. When we examine the options provided, we can see that option 'A' is the most appropriate one based on the context given in the question.

b) Option 'A' is the correct answer because it aligns with the information
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Which one of the following animals lives in the swampy and marshy lands of Assam and West Bengal? 
     [2011 (T-2)]
  • a)
    Tiger                               
  • b)
    Lion                             
  • c)
    One-horned Rhino   
  • d)
    Elephants
Correct answer is option 'C'. Can you explain this answer?

Hridoy Verma answered  •  12 hours ago


One-horned Rhinoceros in Assam and West Bengal

The animal that lives in the swampy and marshy lands of Assam and West Bengal is the One-horned Rhinoceros. Here's why:

Habitat:
- The One-horned Rhinoceros is native to the Indian subcontinent, specifically found in the swampy and marshy lands of Assam and West Bengal.
- These regions provide
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Find the area of trapezium whose parallel sides are 11 m and 25m long and the nonparallel sides are 15m and 13m long?

Hridoy Verma answered  •  12 hours ago

Calculating the Area of a Trapezium

To find the area of a trapezium, you can use the formula:
\[Area = \frac{1}{2} \times (a + b) \times h\]
where \(a\) and \(b\) are the lengths of the parallel sides and \(h\) is the height or the perpendicular distance between the parallel sides.

Given Parameters
- Length of parallel side \(a\) = 11m
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2nd estate comprised of which group?
  • a)
    Clergy
  • b)
    Lawyers
  • c)
    Big businessmen
  • d)
    Nobility
Correct answer is option 'D'. Can you explain this answer?

Mihika Iyer answered  •  20 hours ago

The 2nd estate comprised of Nobility.

- Nobility: The second estate in pre-revolutionary France was made up of the nobility. This group included individuals who held titles of nobility, such as dukes, counts, and barons. The nobility enjoyed privileges such as exemption from certain taxes and the right to hold positions of power and influence in society.

The nobi
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Read the source given below and answer the questions that follow:
The Indian desert lies towards the western margins of the Aravalli Hills. It is an undulating sandy plain covered with sand dunes. This region receives very low rainfall below 150 mm per year. It has an arid climate with low vegetation cover. Streams appear during the rainy season. Soon after they disappear into the sand as they do not have enough water to reach the sea. Luni is the only large river in this region. Barchans (crescent-shaped dunes) cover larger areas but longitudinal dunes become more prominent near the Indo- Pakistan boundary. If you visit Jaisalmer, you may go to see a group of barchans.
Q. The Indian Desert is also known as:
  • a)
    Gobi Desert
  • b)
    Sahara Desert
  • c)
    Thar Desert
  • d)
    Sonoran Desert
Correct answer is option 'C'. Can you explain this answer?

Mihika Iyer answered  •  20 hours ago
The Indian Desert is also known as:

Thar Desert

The Thar Desert, also known as the Indian Desert, is located towards the western margins of the Aravalli Hills. It is characterized by undulating sandy plains covered with sand dunes. Here are some key points about the Thar Desert:

- Low Rainfall: The region receives very low rainfall, typically below 15
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When CaCO3 is heated, it forms CaO and CO2. Which of these statements best describes the mass of the products if 100 g of CaCO3 is heated
  • a)
    The difference in the products’ masses is equal to the mass of the CaCO3.
  • b)
    The mass of each product is equal to the mass of the CaCO3.
  • c)
    The sum of the products’ masses equals the mass of the CaCO3.
  • d)
    The sum of the products’ masses is less than the mass of the CaCO3.
Correct answer is option 'C'. Can you explain this answer?

Mihika Iyer answered  •  20 hours ago

Explanation:

Law of Conservation of Mass:
- According to the Law of Conservation of Mass, during a chemical reaction, mass is conserved. This means that the total mass of the reactants is equal to the total mass of the products.

Reaction of CaCO3:
- When 100 g of CaCO3 is heated, it decomposes to form CaO and CO2.
- The balanced chemi
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Who among the following wanted to modernize Islam to lead their societies? A) radicals B)communist C)socialist D)jadidists?

Mihika Iyer answered  •  20 hours ago

Overview:

Among the options provided, the group that wanted to modernize Islam to lead their societies is the jadidists. Jadidists were a group of Muslim reformers who emerged in the late 19th and early 20th centuries in the Muslim-majority regions of the Russian Empire, particularly in Central Asia and the Caucasus.

Key Points:

Jadidi
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- The Jadidists sought to modernize Islam by promoting educational reforms, including the introduction of secular subjects such as science, math, and literature alongside religious studies.
- They believed that a modern education system based on European models would help Muslims keep pace with the rapidly changing world and lead their societies towards progress and development.
- Jadidists also emphasized the importance of critical thinking, rationality, and social reform in their efforts to revitalize Islamic teachings and practices.
- While some Jadidists faced opposition from conservative religious authorities who viewed their reforms as a threat to traditional Islamic teachings, others gained support from local communities seeking to adapt to the challenges of modernity.
- Overall, the Jadidists played a significant role in shaping the intellectual and cultural landscape of Muslim societies in the Russian Empire and beyond during the late 19th and early 20th centuries.

?

Mihika Iyer answered  •  20 hours ago

Prashant is a character in the story "Weathering the Storm in Ersama" from Class 9 NCERT English Beehive textbook. Here is a character sketch of Prashant:

Background:
Prashant is a young boy who lives in the village of Ersama. He is a hardworking and responsible individual who helps his family with farming and other chores.

Character Traits:
- Di
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In what way were the working poplulation in russian different from other contries in europe,before 1917?

Mihika Iyer answered  •  20 hours ago

Working Population in Russia before 1917

The working population in Russia before 1917 was unique compared to other countries in Europe due to several key factors.

Economic Structure
- Russia had a predominantly agrarian economy with a large population of peasants working on land owned by nobles.
- Industrialization was slow in Russia compared to
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A rocket works on the principle of:
  • a)
    conservation of energy
  • b)
    conservation of linear momentum
  • c)
    conservation of inertia
  • d)
    conservation of force
Correct answer is option 'B'. Can you explain this answer?

Meera Sen answered  •  yesterday
Conservation of linear momentum in a rocket:

Explanation:
- When a rocket is launched, it expels gas or exhaust downwards at a high velocity.
- According to Newton's third law of motion, for every action, there is an equal and opposite reaction.
- As the rocket expels gas downwards, the gas exerts a force on the rocket in the opposite direction (upwards).... more

Which irrigation system is more useful in the areas where canal flow is insufficient or irregular?
  • a)
    River lift system
  • b)
    Canal system
  • c)
    Tanks
  • d)
    Wells
Correct answer is option 'A'. Can you explain this answer?

Meera Sen answered  •  yesterday

River Lift System

- The river lift system is more useful in areas where canal flow is insufficient or irregular because it allows for the extraction of water directly from a nearby river.
- This system involves the use of pumps to lift water from the river to the fields for irrigation purposes.
- By utilizing a river lift system, farmers can overcome the limitations of i
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When speed of a motor car increases six times, then kinetic energy increases by
  • a)
    6 times
  • b)
    36 times
  • c)
    12 times
  • d)
    24 times
Correct answer is option 'B'. Can you explain this answer?

Gitanjali Kaur answered  •  yesterday

Explanation:

Initial Kinetic Energy (KE1):
- Let the initial speed of the motor car be V.
- Kinetic energy is given by KE = 1/2 * m * V2, where m is the mass of the car.

Final Kinetic Energy (KE2):
- When the speed increases six times, the new speed becomes 6V.
- The kinetic energy at this new spe
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When was slavery abolished in Travancore ?           
  • a)
    1855                 
  • b)
    1856           
  • c)
    1857                 
  • d)
    1858
Correct answer is option 'A'. Can you explain this answer?

Gitanjali Kaur answered  •  yesterday

Abolition of Slavery in Travancore

Slavery was abolished in Travancore in the year 1855. This marked a significant step towards the eradication of the inhumane practice of owning and exploiting individuals as property.

Factors leading to abolition
- The abolition of slavery in Travancore was influenced by various factors, including growing awar
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A pyramid is a solid figure ,the base of which is ?

Gitanjali Kaur answered  •  yesterday

Base of a Pyramid

A pyramid is a solid figure with a polygonal base and triangular faces that meet at a common point called the apex. The base of a pyramid is the polygon at the bottom of the figure that serves as its foundation.

Definition of the Base

The base of a pyramid is a two-dimensional shape that forms the bottom of the pyramid. It can
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Gitanjali Kaur answered  •  yesterday

Country with Unequal Voting Rights:

In North Korea, the citizens do not have equal rights to vote. The country is ruled by a single-party system, where the ruling party controls all aspects of governance, including elections.

Key Points:
- In North Korea, the Supreme People's Assembly is the highest organ of state power, but it is essentially a rubb
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The weight of man on surface of earth is 588 Newton find his mass if gravity is 9.8 M per second square if the man is taken to moon his weight is 98 Newton what is his mass on moon also calculate acceleration due to gravity o... more

Gitanjali Kaur answered  •  yesterday

Mass and Weight Calculation on Earth:
- Weight on Earth = 588 N
- Acceleration due to gravity on Earth = 9.8 m/s^2

To calculate the mass of the man on Earth, we use the formula:
Weight = mass x acceleration due to gravity
588 N = mass x 9.8 m/s^2
Mass = 588 N / 9.8 m/s^2
Mass = 60 kg

Mass and Weight Calculation on Moon:
-
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Maan samovar or hans kiske prateth hai ?

Gitanjali Kaur answered  •  yesterday

Maan Samovar or Hans ki Prateeth

Maan Samovar and Hans are two characters from Indian mythology, often associated with different beliefs and symbolism. Let's delve deeper into the meanings and significance of these characters:

Maan Samovar:
- Maan Samovar is a popular character in Punjabi folklore, known for his wisdom and benevolence.
- He is of
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Question No. 47 to 52 are based on the given text. Read the text carefully and answer the questions:
India is one of the ancient civilisations in the world. It has achieved multifaceted socio-economic progress during the last five decades. It has moved forward displaying remarkable progress in the field of agriculture, industry, technology, and overall economic development. India has also contributed significantly to the making of world history. India is a vast country. Lying entirely in the Northern hemisphere the mainland extends between latitudes 8°4'N and 37°6'N and longitudes 68°7'E and 97°25'E. The Tropic of Cancer divides the country into almost two equal parts. To the southeast and southwest of the mainland, lie the Andaman and Nicobar Islands and the Lakshadweep Islands in the Bay of Bengal and the Arabian Sea respectively. The southernmost point of the Indian Union was submerged under the seawater in 2004 during the Tsunami.
Q. Identify the incorrect option with respect to India.
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Gitanjali Kaur answered  •  yesterday
Explanation:

Incorrect Option:

- The incorrect option with respect to India is option 'A' which states that "India is partly in the Southern Hemisphere and partly in the Northern Hemisphere."
- In reality, India lies entirely in the Northern Hemisphere.

Correct Information about India:

- India is one of the ancient civilizations
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Read the source given below and answer the questions that follow:
China’s famine of 1958–1961 was the worst recorded famine in world history. Nearly, three crore people died in this famine. During those days, India’s economic condition was not much better than China. Yet, India did not have a famine of the kind China had. Economists think that this was a result of different government policies in the two countries. The existence of democracy in India made the Indian Government respond to food scarcity in a way that the Chinese government did not. They point out that no large-scale famine has ever taken place in an independent and democratic country. If China too had multiparty elections, an opposition party and a press free to criticise the government, then so many people may not have died in the famine. This example brings out one of the reasons why democracy is considered the best form of government. Democracy is better than any other form of government in responding to the needs of the people. A non-democratic government may and can respond to the people’s needs, but it all depends on the wishes of the people who rule. If the rulers don’t want to, they don’t have to act according to the wishes of the people. A democracy requires that the rulers have to attend to the needs of the people. A democratic government is a better government because it is a more accountable form of government.
Q. During those days, how was the economic condition of India?
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Gitanjali Kaur answered  •  yesterday

India's Economic Condition during the 1958-1961 Famine

India's economic condition during the 1958-1961 famine was not much better than China.

Comparison with China

- China experienced the worst recorded famine in world history during this period, with nearly three crore people dying.
- Despite facing economic challenges, India did not have
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Direction: Read the following paragraph and choose the correct options to answer any four questions given below :
Laboriously, with a double cotton, the little girl stitched three sides. But what to fill it with? That was the question. The grandmother was out in the garden, and she wandered into Mother’s bedroom to look for scraps. On the bed table she discovered a great many sheets of fine paper, gathered them up, tore them into tiny pieces, and stuffed her case, then sewed up the fourth side.
That night there was a hue and cry in the house. Father’s great speech for the Port Authority had been lost. Rooms were searched; servants questioned. Finally Mother came into Kezia’s room. “Kezia, I suppose you didn’t see some papers on a table in our room?” “Oh yes,” she said, “I tore them up for my surprise.”“What!” screamed Mother. “Come straight down to the dining-room this instant.”
Q. Trace the word, which means ‘tiny pieces’ in the extract.
  • a)
    gathered
  • b)
    scraps
  • c)
    sewed
  • d)
    none of these
Correct answer is option 'B'. Can you explain this answer?

Gitanjali Kaur answered  •  yesterday

Explanation:

Scrap:
- The word in the extract that means 'tiny pieces' is 'scraps'.
- In the sentence, "On the bed table she discovered a great many sheets of fine paper, gathered them up, tore them into tiny pieces, and stuffed her case," the word 'scraps' refers to small pieces of paper torn from the sheets.

The correct answer is option 'B' - s
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Read the source given below and answer the following questions :
The French Revolution
On the morning of 14 July 1789, the city of Paris was in a state of alarm. The king had commanded troops to move into the city. Rumours spread that he would soon order the army to open fire upon the citizens. Some 7,000 men and women gathered in front of the town hall and decided to form a people's militia. They broke into a number of government buildings in search of arms.
Finally, a group of several hundred people marched towards the eastern part of the city and stormed the fortress-prison, the Bastille, where they hoped to find hoarded ammunition. In the armed fight that followed, the commander of the Bastille was killed and the prisoners released − though there were only seven of them. Yet the Bastille was hated by all, because it stood for the despotic power of the king. The fortress was demolished and its stone fragments were sold in the markets to all those who wished to keep a souvenir of its destruction.
Q. On 17th July, 1789 the city of Paris was in a state alarm because :
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Gitanjali Kaur answered  •  yesterday


Reason for Alarm in Paris on 17th July, 1789:

Reason for Alarm:
- The city of Paris was in a state of alarm on 17th July, 1789 because rumours had spread that the king would soon order the army to open fire upon the citizens.

Explanation:
- The king had commanded troops to move into the city, which led to fear and anxiety among the citizens.
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The number of times a particular item occurs in a given data is called its.
  • a)
    class-size
  • b)
    cumulative frequency
  • c)
    frequency
  • d)
    variation
Correct answer is option 'C'. Can you explain this answer?

Dipika Mukherjee answered  •  yesterday

Frequency:

Frequency refers to the number of times a particular item occurs in a given dataset. It is a measure of how often an item appears and is an essential component in statistical analysis.

Importance:

Frequency helps in understanding the distribution of data, identifying trends, and making comparisons between different groups or categorie
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Which of the following has reduced India’s distance from Europe by 7000 km?
  • a)
    Indira Gandhi Canal
  • b)
    Panama Canal
  • c)
    Suez Canal
  • d)
    Buckingham Canal
Correct answer is option 'C'. Can you explain this answer?

Preethi Singh answered  •  yesterday


Explanation:

Suez Canal:
The correct answer is the Suez Canal. The Suez Canal is an artificial waterway in Egypt that connects the Mediterranean Sea to the Red Sea. It has reduced India's distance from Europe by approximately 7000 km.

Importance of Suez Canal:
- The Suez Canal is a vital trade route as it allows ships to avoid the lo
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?

Jithin Rane answered  •  yesterday



Science Test

- The Science test for Class 9 should cover topics like physics, chemistry, and biology.
- The test should include multiple-choice questions, short answer questions, and maybe a few longer, more in-depth questions to assess the students' understanding of the concepts.
- Topics that can be covered in the test include: the cell, matter and
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importance and main features of Indian monsoon .??

Anaya Gupta answered  •  yesterday

Importance of Indian Monsoon:

- The Indian monsoon is crucial for the agricultural sector as it provides the much-needed water for irrigation.
- It also replenishes groundwater levels which are essential for drinking water supply.
- The monsoon influences the overall economy of India as agriculture is a significant contributor to the country's GDP.
- The mons
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Direction: Read the following paragraph and choose the correct options to answer any four questions given below :
Laboriously, with a double cotton, the little girl stitched three sides. But what to fill it with? That was the question. The grandmother was out in the garden, and she wandered into Mother’s bedroom to look for scraps. On the bed table she discovered a great many sheets of fine paper, gathered them up, tore them into tiny pieces, and stuffed her case, then sewed up the fourth side.
That night there was a hue and cry in the house. Father’s great speech for the Port Authority had been lost. Rooms were searched; servants questioned. Finally Mother came into Kezia’s room. “Kezia, I suppose you didn’t see some papers on a table in our room?” “Oh yes,” she said, “I tore them up for my surprise.”“What!” screamed Mother. “Come straight down to the dining-room this instant.”
Q. Who made hue and cry in the house?
  • a)
    Kezia’s father
  • b)
    Kezia’s mother
  • c)
    Kezia’s grandmother
  • d)
    None of these
Correct answer is option 'A'. Can you explain this answer?

Anaya Gupta answered  •  yesterday

Who made hue and cry in the house?

The hue and cry in the house was made by Kezia's father.

- Kezia's father was the one who raised the alarm about his lost speech for the Port Authority.
- Rooms were searched and servants were questioned in an attempt to locate the missing papers.
- Ultimately, it was Kezia's mother who confronted Kezia about the torn-
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Read the source given below and answer the questions that follow:
Our country India is one of the 12 mega biodiversity countries of the world. With about 47,000 plant species, India occupies tenth place in the world and fourth in Asia in plant diversity. There are about 15,000 flowering plants in India, which account for 6 per cent in the world’s total number of flowering plants. The country has many nonflowering plants, such as ferns, algae and fungi. India also has approximately 90,000 species of animals, as well as a rich variety of fish in its fresh and marine waters. Natural vegetation refers to a plant community, which has grown naturally without human aid and has been left undisturbed by humans for a long time. This is termed as virgin vegetation. Thus, cultivated crops and fruits, orchards form part of vegetation but not natural vegetation.
Q. India occupies ............... place in the world and ............... place in Asia in plant diversity.
  • a)
    fifth, third
  • b)
    fourth, second
  • c)
    tenth, fourth
  • d)
    third, second
Correct answer is option 'C'. Can you explain this answer?

Subhankar Saini answered  •  yesterday
India occupies tenth place in the world and fourth place in Asia in plant diversity.

Explanation:
- World Ranking: India is ranked tenth in the world in terms of plant diversity, with about 47,000 plant species.
- Asian Ranking: In Asia, India holds the fourth position in plant diversity.
- Flowering Plants: India is home to approximately 15,000 flowe
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What are the variations in indian temperature ?

Subhankar Saini answered  •  yesterday

Variations in Indian Temperature

India is a vast country with diverse geographical features, resulting in a wide range of temperatures across different regions. The variations in temperature can be attributed to various factors such as altitude, proximity to the sea, latitude, and monsoons. Below are some of the key variations in Indian temperature:

1. Himalay
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- The Himalayan region experiences cold temperatures throughout the year due to its high altitude.
- Temperatures can drop significantly during winter, with snowfall being common in many areas.

2. Coastal Areas
- Coastal areas like Mumbai and Chennai have relatively stable temperatures throughout the year due to the moderating effect of the sea.
- Summers are hot and humid, while winters are mild and pleasant in coastal regions.

3. Northern Plains
- The northern plains witness extreme temperatures, with scorching hot summers and cold winters.
- Cities like Delhi and Lucknow experience temperature variations ranging from 45°C in summer to below 5°C in winter.

4. Desert Regions
- Desert regions like Rajasthan experience extreme temperature variations between day and night.
- Summers are extremely hot, with temperatures soaring above 45°C, while winters are cold with temperatures dropping below 10°C.

5. Southern Peninsula
- The southern peninsula has a more equable climate with moderate temperatures throughout the year.
- Cities like Bangalore and Kochi experience pleasant weather with temperatures ranging between 20-30°C.

In conclusion, the variations in Indian temperature are influenced by a combination of geographical factors, making it a land of diverse climates ranging from freezing cold in the Himalayas to scorching heat in the deserts.

Can anyone please tell me the summary of chapter 4 of sanskrit (shemushi) in hindi or english?

Subhankar Saini answered  •  yesterday

Chapter 4 of Sanskrit (Shemushi) Summary

विषय:
- अध्याय 4 में विद्यालय के विषय पर चर्चा की गई है।

कहानी का सारांश:
- चार छात्र अपने विद्यालय में पढ़ाई कर रहे हैं।
- वे समय समय पर विद्यालय आते हैं और अपने शिक्षकों से पढ़ाई करते हैं।
- छात्रों के बीच में खुशी और साथीत्व की भावना होती है।

अध्यापकों का महत्व:
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Direction: Read the following paragraph and choose the correct options to answer any four questions given below :
A headmaster once told his father that what Einstein chose as a profession wouldn’t matter, because “he’ll never make a success at anything. ”Einstein began learning to play the violin at the age of six, because his mother wanted him to; he later became a gifted amateur violinist, maintaining this skill throughout his life. But Albert Einstein was not a bad pupil. He went to high school in Munich, where Einstein’s family had moved when he was 15 months old, and scored good marks in almost every subject. Einstein hated the school’s regimentation, and often clashed with his teachers. At the age of 15, Einstein felt so stifled there that he left the school for good.
Q. How long did he maintain his skill as a violinist?
  • a)
    2 years
  • b)
    long time
  • c)
    throughout his life
  • d)
    none of the above
Correct answer is option 'C'. Can you explain this answer?

Subhankar Saini answered  •  yesterday

Duration of Violin Skill Maintenance:

- Albert Einstein maintained his skill as a violinist throughout his life.

- He began learning to play the violin at the age of six, as his mother wanted him to, and later became a gifted amateur violinist.

- Despite pursuing a career in physics and making groundbreaking discoveries, Einstein continued t
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On copying the formula=$A3+B4, which part of the formula will not change?

Prasenjit Chatterjee answered  •  yesterday


Part of the formula that will not change:

The part of the formula that will not change when copying =$A3+B4 is the cell references.

Explanation:


  • Cell references: When you copy a formula in Excel, the cell references within the formula will adjust based on the new location of the formula. However, in the formula =$A3+B... more



By keeping $A3 as an absolute reference, you are telling Excel to always refer to column A, regardless of where the formula is copied. The relative reference B4, on the other hand, will change based on the new location of the formula. This allows you to perform calculations based on different cells while keeping one reference constant.

Sound is produced by _________objects.
  • a)
    fast moving
  • b)
    vibrating
  • c)
    stationary
  • d)
    rotating
Correct answer is option 'B'. Can you explain this answer?

Krish Mehra answered  •  yesterday


Production of Sound by Vibrating Objects:

Sound is produced by vibrating objects. When an object vibrates, it causes the air particles around it to also vibrate. These vibrating air particles create sound waves that travel through the air until they reach our ears, allowing us to hear the sound.

Explanation:

- When an object vibrate
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A ball of mass 0.5 kg is thrown up with velocity of 15m/s.Find it's PE at highest point.(g=10m/s2)?

Akshat Das answered  •  yesterday

Calculating Potential Energy at the Highest Point

- Given data:
- Mass of the ball (m) = 0.5 kg
- Initial velocity (u) = 15 m/s
- Acceleration due to gravity (g) = 10 m/s^2

- Step 1: Calculate the maximum height reached by the ball.
- Using the kinematic equation: v^2 = u^2 + 2as
- At the highest point, the final v
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Which of the following computer language is written in binary codes only?
  • a)
    pascal
  • b)
    machine language
  • c)
    C
  • d)
    C#
Correct answer is option 'B'. Can you explain this answer?

Sahil Gupta answered  •  2 days ago


Machine Language

Machine language is the only computer language that is written in binary codes only. It is a low-level programming language that directly communicates with the computer's hardware.

Machine language instructions are represented in binary code, which consists of combinations of 0s and 1s. Each instruction is translated into machine code that
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Which of the following is the correct abbreviation of COMPUTER?
  • a)
    Commonly Occupied Machines Used in Technical and Educational Research
  • b)
    Commonly Operated Machines Used in Technical and Environmental Research
  • c)
    Commonly Oriented Machines Used in Technical and Educational Research
  • d)
    Commonly Operated Machines Used in Technical and Educational Research
Correct answer is option 'D'. Can you explain this answer?

Sahil Gupta answered  •  2 days ago
Explanation:

Abbreviation of COMPUTER:

The correct abbreviation of COMPUTER is "Commonly Operated Machines Used in Technical and Educational Research."

This abbreviation is derived from the basic functions and purposes of a computer in the context of technical and educational research. It highlights the common use and operation of machines in these fi
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1st estate comprised of which group?
  • a)
    Monarchs
  • b)
    Big businessmen
  • c)
    Nobility
  • d)
    Clergy
Correct answer is option 'D'. Can you explain this answer?

Sahil Gupta answered  •  2 days ago
The 1st estate comprised of the clergy.

- The Clergy: The clergy was made up of church leaders such as bishops, priests, and monks. They were an integral part of society during this time and held significant power and influence.
- Role: The clergy played a crucial role in the spiritual and moral guidance of the people. They were responsible for religious ceremonies,
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