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All questions of November Week 4 for Class 10 Exam
If the sum of the circumferences of two circles with radii R1 and R2 is equal to the circumference of a circle of radius R, then- a)R1 + R2 = R
- b)R1 + R2 > R
- c)R1 + R2 < R
- d)nothing definite can be said about the relation among R1, R2 and R
Correct answer is option 'A'. Can you explain this answer?
If the sum of the circumferences of two circles with radii R1 and R2 is equal to the circumference of a circle of radius R, then
a)
R1 + R2 = R
b)
R1 + R2 > R
c)
R1 + R2 < R
d)
nothing definite can be said about the relation among R1, R2 and R
|
Pooja Shah answered |
2π R1 + 2πR2 = 2πR
⇒ R1 + R2 = R.
⇒ R1 + R2 = R.
If the area of a circle is 154 cm2, then its perimeter is- a)11cm
- b)22 cm
- c)44 cm
- d)55 cm
Correct answer is option 'C'. Can you explain this answer?
If the area of a circle is 154 cm2, then its perimeter is
a)
11cm
b)
22 cm
c)
44 cm
d)
55 cm
|
Vivek Rana answered |
Given area of circle=154
⇒area of circle=πr²
=22/7 ×7×7.
=154
so radius of the circle=7cm
perimeter of circle=2πr
=2 ×22/7×7
=44cm
⇒perimeter of the circle=44 cm.
⇒area of circle=πr²
=22/7 ×7×7.
=154
so radius of the circle=7cm
perimeter of circle=2πr
=2 ×22/7×7
=44cm
⇒perimeter of the circle=44 cm.
If the circumference of a circle and the perimeter of a square are equal, the- a)Area of the circle = Area of the square
- b)Area of the circle > Area of the square
- c)Area of the circle < Area of the square
- d)Nothing definite can be said about the relation between the areas of the circle and square
Correct answer is option 'B'. Can you explain this answer?
If the circumference of a circle and the perimeter of a square are equal, the
a)
Area of the circle = Area of the square
b)
Area of the circle > Area of the square
c)
Area of the circle < Area of the square
d)
Nothing definite can be said about the relation between the areas of the circle and square
|
Tanishka Gupta answered |
The colour which deviates most in the formation of spectrum of white light by a prism is- a)Green
- b)Yellow
- c)Red
- d)Violet
Correct answer is option 'D'. Can you explain this answer?
The colour which deviates most in the formation of spectrum of white light by a prism is
a)
Green
b)
Yellow
c)
Red
d)
Violet
|
Rahul Kapoor answered |
When white light falls on a glass prism, each colour in it is refracted by a different angle, from which red colour is least deviated and violet most.
The radius of a circle whose circumference is equal to the sum of the circumferences of the two circles of diameters 36 cm and 20 cm is- a)56 cm
- b)42 cm
- c)28 cm
- d)16 cm
Correct answer is option 'C'. Can you explain this answer?
The radius of a circle whose circumference is equal to the sum of the circumferences of the two circles of diameters 36 cm and 20 cm is
a)
56 cm
b)
42 cm
c)
28 cm
d)
16 cm
|
Amit Sharma answered |
Diameter of first circle = d1 = 36 cm
Diameter of second circle = d2 = 20 cm
∴ Circumference of first circle = πd1 = 36π cm
Circumference of second circle = πd2 = 20π cm
Now, we are given that,
Circumference of circle = Circumference of first circle + Circumference of second circle
πD = πd1 + πd2
⇒ πD = 36π + 20π
⇒ πD = 56π ⇒ D = 56
⇒ Radius = 56/2 = 28 cm
Diameter of second circle = d2 = 20 cm
∴ Circumference of first circle = πd1 = 36π cm
Circumference of second circle = πd2 = 20π cm
Now, we are given that,
Circumference of circle = Circumference of first circle + Circumference of second circle
πD = πd1 + πd2
⇒ πD = 36π + 20π
⇒ πD = 56π ⇒ D = 56
⇒ Radius = 56/2 = 28 cm
The diameter of a wheel is 1.26 m. The distance travelled in 500 revolutions is- a)2670 m
- b)2880 m
- c)1980 m
- d)1596 m
Correct answer is option 'C'. Can you explain this answer?
The diameter of a wheel is 1.26 m. The distance travelled in 500 revolutions is
a)
2670 m
b)
2880 m
c)
1980 m
d)
1596 m
|
Akshay Nair answered |
Diameter of circle =1.26m
travel distance=circumference of circle �500 revolution
circumference of circle = one relvolution
now,
according to questions (A.T.Q),
finding distance,
circumference of circle = 2πr
=2x22/7x(1.26/2)
=3.96
distance in 500 revolution = 3.96x500
=1980.00
The perimeter (in cm) of a square circumscribing a circle of radius a cm, is- a)8 a
- b)4 a
- c)2 a
- d)16
Correct answer is option 'A'. Can you explain this answer?
The perimeter (in cm) of a square circumscribing a circle of radius a cm, is
a)
8 a
b)
4 a
c)
2 a
d)
16
|
Naina Chopra answered |
Given: Radius of the circle = r = a cm
To find the perimeter of the square.
Since the diameter of the circle is equal to the side of the square, therefore, side of the square = 2r = 2a cm a
Now, the perimeter of the square = 4 � (Side)
Thus, the perimeter of the square = 4(2a) cm
= 8a cm
A prism splits a beam of white light into seven colours because different colours have different __________________ .
- a)Speed in prism
- b)phase in prism
- c)Amplitude in prism
- d)None of these
Correct answer is option 'A'. Can you explain this answer?
A prism splits a beam of white light into seven colours because different colours have different __________________ .
a)
Speed in prism
b)
phase in prism
c)
Amplitude in prism
d)
None of these
|
|
Vikram Kapoor answered |
The phenomena due to which white light splits Into seven colours on passing through a prism is called dispersion. Upon passing through a medium, each of the colors travels at different speeds and hence has different angles of refraction leading to the splitting of the light.
What happens when white light is passed from air to glass prism?- a)Reflects back
- b)Bends towards normal
- c)Passes undeviated
- d)Bends away from normal
Correct answer is option 'B'. Can you explain this answer?
What happens when white light is passed from air to glass prism?
a)
Reflects back
b)
Bends towards normal
c)
Passes undeviated
d)
Bends away from normal
|
Harshu answered |
Light bends towards the normal as the light is passing from a rarer medium to denser medium.
Select the statement related to the advantages of the multi-party system
- a)The multi-party system provides a limited choice to voters
- b)Provides choice to the voters
- c)Both B and D
- d)In the Multi-party system, regional parties get the representation
Correct answer is option 'C'. Can you explain this answer?
Select the statement related to the advantages of the multi-party system
a)
The multi-party system provides a limited choice to voters
b)
Provides choice to the voters
c)
Both B and D
d)
In the Multi-party system, regional parties get the representation
|
|
Priyanshu Intelligent answered |
Multi - Party Systems means more parties which means more Contestant.
This provides choice to voters .
This provides choice to voters .
Consider the following statements on parties:
A. Political parties do not enjoy much trust among the people.
B. Parties are often rocked by scandals involving top party leaders.
C. Parties are not necessary to run governments.Which of the statements given above are correct?- a)A, B and C
- b)A and B
- c)B and C
- d)A and C
Correct answer is option 'B'. Can you explain this answer?
Consider the following statements on parties:
A. Political parties do not enjoy much trust among the people.
B. Parties are often rocked by scandals involving top party leaders.
C. Parties are not necessary to run governments.
A. Political parties do not enjoy much trust among the people.
B. Parties are often rocked by scandals involving top party leaders.
C. Parties are not necessary to run governments.
Which of the statements given above are correct?
a)
A, B and C
b)
A and B
c)
B and C
d)
A and C
|
Teju Sre answered |
Because
Political parties are allotted symbols by _______.- a)The government of India
- b)The constitution of India
- c)The party leaders
- d)The Election Commission
Correct answer is option 'D'. Can you explain this answer?
Political parties are allotted symbols by _______.
a)
The government of India
b)
The constitution of India
c)
The party leaders
d)
The Election Commission
|
|
Yathartha answered |
Correct answer is D . The Election Commission.
Which one of the following is true regarding a coalition government?- a)Only two parties for man alliance and contest elections
- b)Several parties compete for power
- c)The government is formed by two or more parties coming together
- d)Several parties form an alliance and compete for power
Correct answer is option 'C'. Can you explain this answer?
Which one of the following is true regarding a coalition government?
a)
Only two parties for man alliance and contest elections
b)
Several parties compete for power
c)
The government is formed by two or more parties coming together
d)
Several parties form an alliance and compete for power
|
|
Abhi answered |
A government formed by the coming together of at least two political parties is known as a coalition government. Usually partners in a coalition form a political alliance and adopt a common programme.
Congress led coalition government is UPA whereas BJP led coalition is known as NDA.
Congress led coalition government is UPA whereas BJP led coalition is known as NDA.
A recognised political party is one that- a)is registered with the Election Commission of India.
- b)is given a unique Election symbol
- c)gets some other facilities recognised by the Election Commission
- d)All of these
Correct answer is option 'D'. Can you explain this answer?
A recognised political party is one that
a)
is registered with the Election Commission of India.
b)
is given a unique Election symbol
c)
gets some other facilities recognised by the Election Commission
d)
All of these
|
Priyanshu Kumar answered |
¶¶ the party which is recognised and registered by the govt and election commision.it is given a unique symbol which can be used only by the candidates of that party.
¶¶ Hence option d is correct
¶¶ Hence option d is correct
Choose the correctly matched pair:
- a)Newton - Discovered that sunlight is composed of six colors
- b)Red light - Bends the most through a prism
- c)Water droplets - Cause a rainbow by refracting and reflecting sunlight
- d)Rainbow - Formed in the same direction as the Sun
Correct answer is option 'C'. Can you explain this answer?
Choose the correctly matched pair:
a)
Newton - Discovered that sunlight is composed of six colors
b)
Red light - Bends the most through a prism
c)
Water droplets - Cause a rainbow by refracting and reflecting sunlight
d)
Rainbow - Formed in the same direction as the Sun
|
BT Educators answered |
- Option A: Newton - Discovered that sunlight is composed of seven colors. This option is correctly matched. Isaac Newton indeed discovered that sunlight is composed of seven colors by using a glass prism. However, this is not the best match compared to Option C, which more directly relates to the context of rainbows and light dispersion.
- Option B: Red light - Bends the most through a prism. This option is incorrect. Red light bends the least through a prism, while violet light bends the most.
- Option C: Water droplets - Cause a rainbow by refracting and reflecting sunlight. This option is correctly matched. Water droplets in the atmosphere act like small prisms. They refract and disperse the incident sunlight, reflect it internally, and then refract it again, leading to the formation of a rainbow.
- Option D: Rainbow - Formed in the same direction as the Sun. This option is incorrect. A rainbow is formed in a direction opposite to that of the Sun. Thus, the correctly matched pair is Option C.
In a democratic country, any group of citizens is free to form- a)a political party
- b)society
- c)religion
- d)none of the above
Correct answer is option 'A'. Can you explain this answer?
In a democratic country, any group of citizens is free to form
a)
a political party
b)
society
c)
religion
d)
none of the above
|
Muskan Sheoran answered |
Means Democracy gives freedom to all the people to form any political party or pressure groups or movements..
Choose the correctly matched pair.- a) Violet - First colour in VIBGYOR
- b) Red - First colour in VIBGYOR
- c) Green - Second colour in VIBGYOR
- d) Yellow - Last colour in VIBGYOR
Correct answer is option 'A'. Can you explain this answer?
a)
Violet - First colour in VIBGYOR
b)
Red - First colour in VIBGYOR
c)
Green - Second colour in VIBGYOR
d)
Yellow - Last colour in VIBGYOR
|
S.S Career Academy answered |
- Option A: (a) Violet - First colour in VIBGYOR: This is the correct pair. Violet is the first colour in the VIBGYOR sequence.
- Option B: (b) Red - First colour in VIBGYOR: This is incorrect. Red is the last colour in the VIBGYOR sequence, not the first.
- Option C: (c) Green - Second colour in VIBGYOR: This is incorrect. Green is the fourth colour in the VIBGYOR sequence, not the second.
- Option D: (d) Yellow - Last colour in VIBGYOR: This is incorrect. Yellow is the fifth colour in the VIBGYOR sequence, not the last.
Therefore, the correctly matched pair is Option A: (a) Violet - First colour in VIBGYOR.
Members of the ruling party follow the directions of- a)people
- b)party leaders
- c)pressure groups
- d)none of the above
Correct answer is option 'B'. Can you explain this answer?
Members of the ruling party follow the directions of
a)
people
b)
party leaders
c)
pressure groups
d)
none of the above
|
Pranav Kapoor answered |
Understanding the Ruling Party's Dynamics
In a political context, members of the ruling party typically align their actions and decisions based on directives from their party leaders. Here’s a detailed breakdown of why option 'B' is the correct answer:
Leadership Structure
- Party leaders hold significant authority within the ruling party.
- They set the agenda, develop policies, and dictate the party's stance on various issues.
Party Cohesion
- Members are encouraged to maintain unity and coherence in their actions to project a strong party image.
- Following party leaders fosters loyalty and discipline among members.
Decision-Making Process
- Important decisions, such as legislative proposals, are often crafted by party leaders.
- Members rely on these leaders for guidance on how to vote or act on significant issues.
Influence of Party Manifesto
- The party’s manifesto outlines its goals and policies, which members are expected to support.
- Leaders interpret and implement these policies, directing members accordingly.
Relationship with Pressure Groups
- While pressure groups may influence party policies, the ultimate direction comes from party leaders.
- Members of the ruling party prioritize internal party loyalty over external influences.
Conclusion
In summary, members of the ruling party primarily follow the directions of party leaders due to the structured leadership dynamics, the necessity for cohesion, and the established decision-making processes. This ensures that the party remains unified in its approach to governance and policy implementation.
In a political context, members of the ruling party typically align their actions and decisions based on directives from their party leaders. Here’s a detailed breakdown of why option 'B' is the correct answer:
Leadership Structure
- Party leaders hold significant authority within the ruling party.
- They set the agenda, develop policies, and dictate the party's stance on various issues.
Party Cohesion
- Members are encouraged to maintain unity and coherence in their actions to project a strong party image.
- Following party leaders fosters loyalty and discipline among members.
Decision-Making Process
- Important decisions, such as legislative proposals, are often crafted by party leaders.
- Members rely on these leaders for guidance on how to vote or act on significant issues.
Influence of Party Manifesto
- The party’s manifesto outlines its goals and policies, which members are expected to support.
- Leaders interpret and implement these policies, directing members accordingly.
Relationship with Pressure Groups
- While pressure groups may influence party policies, the ultimate direction comes from party leaders.
- Members of the ruling party prioritize internal party loyalty over external influences.
Conclusion
In summary, members of the ruling party primarily follow the directions of party leaders due to the structured leadership dynamics, the necessity for cohesion, and the established decision-making processes. This ensures that the party remains unified in its approach to governance and policy implementation.
Isaac Newton was the first to use a glass prism to obtain the spectrum of _____.- a)Sunlight
- b)Rainbow
- c)White light
- d)Water droplets
Correct answer is option 'A'. Can you explain this answer?
Isaac Newton was the first to use a glass prism to obtain the spectrum of _____.
a)
Sunlight
b)
Rainbow
c)
White light
d)
Water droplets
|
Gowri Mehta answered |
Understanding Newton's Experiment with Prisms
Isaac Newton's groundbreaking experiment with glass prisms was pivotal in the study of light and color. In this experiment, he aimed to explore the nature of light and its composition.
What Newton Discovered
- When Newton passed a beam of sunlight through a glass prism, he observed that the light was refracted, or bent, as it entered the prism.
- This bending of light caused it to spread out into a spectrum of colors, which included red, orange, yellow, green, blue, indigo, and violet.
- This phenomenon demonstrated that white light is not a single entity but is comprised of multiple colors.
Significance of Sunlight
- The correct answer is option 'A' because Newton specifically experimented with sunlight, which is a natural source of white light.
- By using sunlight, he was able to show that when white light is dispersed through a prism, it can be separated into its component colors, forming a spectrum.
Conclusion
Newton's work laid the foundation for the field of optics and fundamentally changed our understanding of light. His experiments demonstrated that color is an intrinsic property of light, leading to further discoveries in both physics and color theory. This exploration of sunlight through a prism remains a crucial moment in scientific history.
Isaac Newton's groundbreaking experiment with glass prisms was pivotal in the study of light and color. In this experiment, he aimed to explore the nature of light and its composition.
What Newton Discovered
- When Newton passed a beam of sunlight through a glass prism, he observed that the light was refracted, or bent, as it entered the prism.
- This bending of light caused it to spread out into a spectrum of colors, which included red, orange, yellow, green, blue, indigo, and violet.
- This phenomenon demonstrated that white light is not a single entity but is comprised of multiple colors.
Significance of Sunlight
- The correct answer is option 'A' because Newton specifically experimented with sunlight, which is a natural source of white light.
- By using sunlight, he was able to show that when white light is dispersed through a prism, it can be separated into its component colors, forming a spectrum.
Conclusion
Newton's work laid the foundation for the field of optics and fundamentally changed our understanding of light. His experiments demonstrated that color is an intrinsic property of light, leading to further discoveries in both physics and color theory. This exploration of sunlight through a prism remains a crucial moment in scientific history.
The political parties of a country have a fundamental political ______ in a society.- a)choice
- b)division
- c)support
- d)power
Correct answer is option 'B'. Can you explain this answer?
The political parties of a country have a fundamental political ______ in a society.
a)
choice
b)
division
c)
support
d)
power
|
EduRev Class 10 answered |
Political Parties and their Fundamental Political Division in Society
Political parties play a crucial role in shaping the political landscape of a country. Their influence and impact can be seen through their fundamental political division in society, which can be explained as follows:
- Political Choice: Political parties offer different choices and options to the citizens, allowing them to align themselves with a particular ideology, platform, or set of policies.
- Political Division: Political parties create divisions within society based on their differing beliefs, values, and agendas. These divisions can lead to a healthy debate and competition, but they can also contribute to polarization and conflicts.
- Political Support: Political parties rely on the support of the citizens to gain power and influence. They seek to attract supporters who share their vision and goals, and mobilize them to participate in the political process.
- Political Power: Political parties strive to acquire and exercise political power through elections and governance. They aim to shape policies, make decisions, and influence the direction of the country.
Therefore, the fundamental political division created by political parties in society is an essential aspect of a country's political landscape.
Berlusconi was the Prime Minister of ________. His company owns TV channels, the most important publishing company, and a football club (AC Milan).- a)Italy
- b)Germany
- c)England
- d)France
Correct answer is option 'A'. Can you explain this answer?
Berlusconi was the Prime Minister of ________. His company owns TV channels, the most important publishing company, and a football club (AC Milan).
a)
Italy
b)
Germany
c)
England
d)
France
|
Kds Coaching answered |
Berlusconi was the Prime Minister of Italy. He is the owner of:
- Television channels
- The leading publishing company
- The football club AC Milan
Indian National Congress (INC) is one of the oldest parties in the world, founded in _________. - a)1885
- b)1880
- c)1888
- d)1889
Correct answer is option 'A'. Can you explain this answer?
Indian National Congress (INC) is one of the oldest parties in the world, founded in _________.
a)
1885
b)
1880
c)
1888
d)
1889
|
|
Kds Coaching answered |
The Indian National Congress (INC) is one of the world's oldest political parties, having been established in 1885.
- The INC played a crucial role in India's struggle for independence.
- It was founded with the aim of obtaining a greater share in government for educated Indians.
- Over the years, the party has significantly influenced Indian politics.
Chapter doubts & questions for November Week 4 - Weekly Tests for Class 10 Preparation 2025 is part of Class 10 exam preparation. The chapters have been prepared according to the Class 10 exam syllabus. The Chapter doubts & questions, notes, tests & MCQs are made for Class 10 2025 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests here.
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