Top Class 10 Doubts this Week
If p(1,2),q(4,6),r(5,7),s(a,b)are the vertices of parallelogram pqrs then find the values of a and b?
|
Simran malhotra answered • Oct 28, 2019 Class 10 |
Solution:
Given, the vertices of the parallelogram PQRS are:
P(1,2), Q(4,6), R(5,7) and S(a,b)
Let us first find the coordinates of the fourth vertex S.
Using the property of the parallelogram, we know that the opposite sides of the parallelogram are parallel and equal in length.
Therefore, we can find the coordinates of S as follows:
... more
Given, the vertices of the parallelogram PQRS are:
P(1,2), Q(4,6), R(5,7) and S(a,b)
Let us first find the coordinates of the fourth vertex S.
Using the property of the parallelogram, we know that the opposite sides of the parallelogram are parallel and equal in length.
Therefore, we can find the coordinates of S as follows:
Social outcomes cover the areas like
(i) Dignity and freedom of citizens
(ii) Untouchability and discrimination
(iii) Gender equality
(iv) Ban on child labour
- a)(i), (iiii) and (iv)
- b)(i), (ii) and (iv)
- c)(ii) and (iv)
- d)(i) only
Correct answer is option 'B'. Can you explain this answer?
Social outcomes cover the areas like
(i) Dignity and freedom of citizens
(ii) Untouchability and discrimination
(iii) Gender equality
(iv) Ban on child labour
(i) Dignity and freedom of citizens
(ii) Untouchability and discrimination
(iii) Gender equality
(iv) Ban on child labour
a)
(i), (iiii) and (iv)
b)
(i), (ii) and (iv)
c)
(ii) and (iv)
d)
(i) only
|
Ritu patil answered • Nov 23, 2020 Class 10 |
Social Outcomes:
There are various social outcomes that are important for the overall development of a society. The major social outcomes include:
(i) Dignity and freedom of citizens
(ii) Untouchability and discrimination
(iii) Gender equality
(iv) Ban on child labour
Explanation:
(i) Dignity and freedom of citizens:
Every citizen has... more
There are various social outcomes that are important for the overall development of a society. The major social outcomes include:
(i) Dignity and freedom of citizens
(ii) Untouchability and discrimination
(iii) Gender equality
(iv) Ban on child labour
Explanation:
(i) Dignity and freedom of citizens:
Every citizen has... more
Summarise the attributes of a nation as Ernst Renan understands them . Why in his views are nations important?
|
Tulsi dubey answered • Mar 25, 2019 Class 10 |
Ernst Renan's Attributes of a Nation
Importance of Nations According to Renan
Ernst Renan believed that nations are important because they p... more
- Shared history or memories
- Shared language and culture
- Shared territory or homeland
- Shared values and beliefs
- Shared aspirations and goals
Importance of Nations According to Renan
Ernst Renan believed that nations are important because they p... more
The velocity of the particle at any time t is given by v = 2t(3 − t)m s−1. At what time is its velocity maximum?- a)2 s
- b)3 s
- c)2/3s
- d)3/2 s
Correct answer is option 'D'. Can you explain this answer?
The velocity of the particle at any time t is given by v = 2t(3 − t)m s−1. At what time is its velocity maximum?
a)
2 s
b)
3 s
c)
2/3s
d)
3/2 s
|
Hansa Sharma answered • Sep 08, 2024 Class 10 |
given v = 2t(3 − t) or v = 6t - 2t2
For V maximum or minimum
Two statements are given followed by two conclusions numbered I and II. Assuming the statements to be true, even if they seem to be at variance with commonly known facts, decide which of the conclusions logically follow(s) from the statements.Statements:Some horses are not trucks.All horses are white.Conclusions:I. Some white are trucks.II. Some horses being truck is a possibility.- a)Only conclusion I follows
- b)Neither conclusion I nor II follows
- c)Only conclusion II follows
- d)Both conclusions I and II follow
Correct answer is option 'C'. Can you explain this answer?
Two statements are given followed by two conclusions numbered I and II. Assuming the statements to be true, even if they seem to be at variance with commonly known facts, decide which of the conclusions logically follow(s) from the statements.
Statements:
Some horses are not trucks.
All horses are white.
Conclusions:
I. Some white are trucks.
II. Some horses being truck is a possibility.
a)
Only conclusion I follows
b)
Neither conclusion I nor II follows
c)
Only conclusion II follows
d)
Both conclusions I and II follow
|
Sheena rane answered • Aug 28, 2024 Class 10 |
Understanding the statements:
- The first statement tells us that there are some horses that are not trucks.
- The second statement states that all horses are white.
Analysis of Conclusions:
I. Some white are trucks:
- This conclusion cannot be logically inferred from the given statements. Just because all horses are white does not mean that some white ... more
- The first statement tells us that there are some horses that are not trucks.
- The second statement states that all horses are white.
Analysis of Conclusions:
I. Some white are trucks:
- This conclusion cannot be logically inferred from the given statements. Just because all horses are white does not mean that some white ... more
A particle of mass 'm' original at rest, is subjected to a force whose direction is constant but whose magnitude varies with according to the relation
Where F0 and T are constant.
Then speed of the particle after a time 2T is:
- a)
- b)
- c)
- d)
Correct answer is option 'C'. Can you explain this answer?
A particle of mass 'm' original at rest, is subjected to a force whose direction is constant but whose magnitude varies with according to the relation
Where F0 and T are constant.
Then speed of the particle after a time 2T is:
Then speed of the particle after a time 2T is:
a)
b)
c)
d)
|
Tejas Verma answered • Oct 16, 2023 Class 10 |
Given:
Speed of the particle after a time 2T,
How can we download docs of edurev in PDF?
|
Jithin Das answered • Aug 13, 2018 Class 10 |
How to Download EduRev Docs in PDF Format
Downloading EduRev documents in PDF format is an easy process. Follow the steps below:
- Log in to your EduRev account.
- Search for the document you want to download in PDF format.
- Click on the document to open it.
- On the document page, scroll down and look for the download icon.
- Click on the download icon to save the document in PDF format.
- You can choose to save the document on your computer or mobile device.
Note: Some documents may not be available for download in PDF format due to copyright restrictions.
EduRev is a great platform for students and educators to access study materials, practice tests, and other educational resources. The platform offers a wide range of documents, including notes, question papers, and solutions, which can be downloaded in various formats, including PDF.
Consider the following pairs:1. Satluj River - Originates from Beas Kund2. Ravi River - Originates from Bara Bhangal Glacier3. Yamuna River - Forms the eastern boundary of Himachal Pradesh with Uttarakhand4. Spiti River - Joins the Satluj River near KhabHow many pairs given above are correctly matched?- a)Only one pair
- b)Only two pairs
- c)Only three pairs
- d)All four pairs
Correct answer is option 'C'. Can you explain this answer?
Consider the following pairs:
1. Satluj River - Originates from Beas Kund
2. Ravi River - Originates from Bara Bhangal Glacier
3. Yamuna River - Forms the eastern boundary of Himachal Pradesh with Uttarakhand
4. Spiti River - Joins the Satluj River near Khab
How many pairs given above are correctly matched?
a)
Only one pair
b)
Only two pairs
c)
Only three pairs
d)
All four pairs
Analysis of River-Origin Pairs
To determine how many pairs are correctly matched, let's analyze each statement one by one.
1. Satluj River - Originates from Beas Kund
- Explanation: The Satluj River actually originates from the Rakhigarhi region in Tibet, not Beas Kund. Hence, this pair is incorrect.
2. Ravi River - Originates from Bara Bhangal G... more
To determine how many pairs are correctly matched, let's analyze each statement one by one.
1. Satluj River - Originates from Beas Kund
- Explanation: The Satluj River actually originates from the Rakhigarhi region in Tibet, not Beas Kund. Hence, this pair is incorrect.
2. Ravi River - Originates from Bara Bhangal G... more
Directions: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:Assertion : On changing the direction of flow of current through a straight conductor, the direction of a magnetic field around the conductor is reversed.Reason : The direction of the magnetic field around a conductor can be given in accordance with the left hand thumb rule.- a)Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).
- b)Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).
- c)Assertion (A) is true but reason (R) is false.
- d)Assertion (A) is false but reason (R) is true.
- e)Both Assertion and Reason are false.
Correct answer is option 'C'. Can you explain this answer?
Directions: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:
Assertion : On changing the direction of flow of current through a straight conductor, the direction of a magnetic field around the conductor is reversed.
Reason : The direction of the magnetic field around a conductor can be given in accordance with the left hand thumb rule.
a)
Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).
b)
Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).
c)
Assertion (A) is true but reason (R) is false.
d)
Assertion (A) is false but reason (R) is true.
e)
Both Assertion and Reason are false.
|
|
Avinash Patel answered • Sep 19, 2021 Class 10 |
(i) The strength of magnetic field around a straight current conductor increases
on increasing the strength of current in the conductor or vice versa.
(ii)The direction of the magnetic field around a straight current carrying conductor gets reversed if the direction of current through that conductor is reversed.
Which of the following crops is NOT included in the six rabi crops for which the MSP was recently announced?- a) Wheat
- b) Barley
- c) Rice
- d) Gram
Correct answer is option 'C'. Can you explain this answer?
Which of the following crops is NOT included in the six rabi crops for which the MSP was recently announced?
a)
Wheat
b)
Barley
c)
Rice
d)
Gram
|
Soha Kapoor answered • Oct 18, 2024 Class 10 |
Understanding Rabi Crops
Rabi crops are those that are sown in the winter and harvested in the spring. In India, these crops are crucial for ensuring food security and providing income to farmers. The Minimum Support Price (MSP) is a government-set price to purchase directly from the farmer, ensuring they receive a fair price for their produce.
List of Six Rabi Crops
T... more
Rabi crops are those that are sown in the winter and harvested in the spring. In India, these crops are crucial for ensuring food security and providing income to farmers. The Minimum Support Price (MSP) is a government-set price to purchase directly from the farmer, ensuring they receive a fair price for their produce.
List of Six Rabi Crops
T... more
SID4232 IS MY reffal code to get rs 500 discount in edurev infinity thanksssss?
|
|
Madhavi kumar answered • Aug 01, 2019 Class 10 |
**SID4232 IS MY REFERRAL CODE TO GET RS 500 DISCOUNT IN EDUREV INFINITY**
EduRev Infinity is an online learning platform that offers a wide range of courses and study materials for various competitive exams, school subjects, and professional development. With the referral code SID4232, you can avail a discount of Rs 500 on EduRev Infinity. Let's delve into the details of how you can use... more
EduRev Infinity is an online learning platform that offers a wide range of courses and study materials for various competitive exams, school subjects, and professional development. With the referral code SID4232, you can avail a discount of Rs 500 on EduRev Infinity. Let's delve into the details of how you can use... more
Choose the option that best corrects the underlined phrase.Every astronaut in the team have to follow a strict dietary regimen.- a)NO CHANGE
- b) have to abide by
- c)has to adhere to
- d)has to follows
Correct answer is option 'C'. Can you explain this answer?
Choose the option that best corrects the underlined phrase.Every astronaut in the team have to follow a strict dietary regimen.
a)
NO CHANGE
b)
have to abide by
c)
has to adhere to
d)
has to follows
|
Jackson Reed answered • Jan 05, 2024 Class 10 |
Explanation:
In the given sentence, the underlined phrase "Every astronaut in the team have to" is incorrect. The subject "Every astronaut in the team" is singular, so the verb should be in the singular form as well.
- The correct answer is option C: "has to adhere to"
Analysis:
Let's analyze each answer choice to understand why option C is the correct... more
In the given sentence, the underlined phrase "Every astronaut in the team have to" is incorrect. The subject "Every astronaut in the team" is singular, so the verb should be in the singular form as well.
- The correct answer is option C: "has to adhere to"
Analysis:
Let's analyze each answer choice to understand why option C is the correct... more
The roots of a2x2 + abx = b2, a = 0 are :- a)Equal
- b)Non-real
- c)Unequal
- d)None of these
Correct answer is option 'C'. Can you explain this answer?
The roots of a2x2 + abx = b2, a = 0 are :
a)
Equal
b)
Non-real
c)
Unequal
d)
None of these
|
Anagha Yadav answered • Nov 01, 2024 Class 10 |
Roots of the quadratic equation:
The quadratic equation given is a^2x^2 + abx - b^2 = 0.
To find the roots of this equation, we can use the quadratic formula:
x = (-b ± √(b^2 - 4ac)) / 2a
In this equation, a = a^2, b = ab, and c = -b^2.
Now let's substitute these values into the quadratic formula and simplify:
x = (-ab ± √((ab)^2 - ... more
The quadratic equation given is a^2x^2 + abx - b^2 = 0.
To find the roots of this equation, we can use the quadratic formula:
x = (-b ± √(b^2 - 4ac)) / 2a
In this equation, a = a^2, b = ab, and c = -b^2.
Now let's substitute these values into the quadratic formula and simplify:
x = (-ab ± √((ab)^2 - ... more
.
- a)1
- b)2
- c)3
- d)4
Correct answer is option 'C'. Can you explain this answer?
a)
1
b)
2
c)
3
d)
4
|
Umair Siddiqui answered • Oct 24, 2024 Class 10 |
All insect and are classified in insecta
Which of the following statement is incorrect?
- a)In oxidation, oxygen in added to a substance.
- b)In reduction, Hydrogen is added to a substance.
- c)Oxidizing agent is oxidized.
- d)Reducing agent is oxidized
Correct answer is option 'C'. Can you explain this answer?
Which of the following statement is incorrect?
a)
In oxidation, oxygen in added to a substance.
b)
In reduction, Hydrogen is added to a substance.
c)
Oxidizing agent is oxidized.
d)
Reducing agent is oxidized
|
Vikram Kapoor answered • Nov 13, 2018 Class 10 |
An oxidizing agent oxidizes other substances and gains electrons; therefore, its oxidation state decreases. Hence, it gets reduced.
A plane left 40 minutes late due to bad weather and in order to reach it's destination, 1600 km away in time,it had to increase it's speed by 400 km/h from it's usual speed. Find the usual speed of the plane :- a)600 km/h
- b)750 km/h
- c)800 km/h
- d)None of these
Correct answer is option 'C'. Can you explain this answer?
A plane left 40 minutes late due to bad weather and in order to reach it's destination, 1600 km away in time,it had to increase it's speed by 400 km/h from it's usual speed. Find the usual speed of the plane :
a)
600 km/h
b)
750 km/h
c)
800 km/h
d)
None of these
|
Sayali rao answered • 3 weeks ago Class 10 |
Problem Solving Strategy:
- Use the formula:
Distance = Speed x Time
- Calculate the time taken to cover 1600 km at usual speed and increased speed.
- Use the time difference to find the usual speed.
Solution:
Let the usual speed of the plane be 'S' km/h.
The distance to be covered is 1600 km.
The time taken to cover the distance at the usu... more
- Use the formula:
Distance = Speed x Time
- Calculate the time taken to cover 1600 km at usual speed and increased speed.
- Use the time difference to find the usual speed.
Solution:
Let the usual speed of the plane be 'S' km/h.
The distance to be covered is 1600 km.
The time taken to cover the distance at the usu... more
Choose the correct abstract noun for the given words.Q. friend: ________- a)friends
- b)group
- c)friendship
- d)school
Correct answer is option 'C'. Can you explain this answer?
Choose the correct abstract noun for the given words.
Q. friend: ________
a)
friends
b)
group
c)
friendship
d)
school
|
|
Alekhya jain answered • Aug 31, 2023 Class 10 |
Explanation:
Abstract nouns are words that cannot be seen, touched, heard, smelled or tasted. They are things that are felt emotionally, mentally or spiritually. They are qualities, ideas or conditions that cannot be experienced by the five senses. In this question, we are asked to choose the correct abstract noun for the word friend.
The word friend is a common noun that re... more
Abstract nouns are words that cannot be seen, touched, heard, smelled or tasted. They are things that are felt emotionally, mentally or spiritually. They are qualities, ideas or conditions that cannot be experienced by the five senses. In this question, we are asked to choose the correct abstract noun for the word friend.
The word friend is a common noun that re... more
Which of the following sentences contains a comma error? - a)While Washington managed to lose most of the battles he engaged in, he also managed to win the war.
- b)The loss of New York City and Philadelphia in 1777 should have ended the rebellion, but four years later, George Washington stood upon a battlefield in Virginia watching Britain's most powerful army in the colonies parade past him in surrender.
- c)We have put Washington's image on monuments and mountains, on currency and coins, and on stamps and postmarks; we have filled our country, our pockets, and our envelopes with memorials large and small to this essential man.
- d)Washington's greatest quality might have been his belief in his own abilities, in the lesser men who served with him, that attribute all too often led to personal failure and military disaster.
Correct answer is option 'D'. Can you explain this answer?
Which of the following sentences contains a comma error?
a)
While Washington managed to lose most of the battles he engaged in, he also managed to win the war.
b)
The loss of New York City and Philadelphia in 1777 should have ended the rebellion, but four years later, George Washington stood upon a battlefield in Virginia watching Britain's most powerful army in the colonies parade past him in surrender.
c)
We have put Washington's image on monuments and mountains, on currency and coins, and on stamps and postmarks; we have filled our country, our pockets, and our envelopes with memorials large and small to this essential man.
d)
Washington's greatest quality might have been his belief in his own abilities, in the lesser men who served with him, that attribute all too often led to personal failure and military disaster.
|
Saranya Sharma answered • Nov 01, 2024 Class 10 |
Error Identification
The task requires identifying a sentence that contains a comma error. The options are:
a) While Washington managed to lose most of the battles he engaged in, he also managed to win the war.
b) The loss of New York City and Philadelphia in 1777 should have ended the rebellion, but four years later, George Washington stood upon a battlefield in V... more
The task requires identifying a sentence that contains a comma error. The options are:
a) While Washington managed to lose most of the battles he engaged in, he also managed to win the war.
b) The loss of New York City and Philadelphia in 1777 should have ended the rebellion, but four years later, George Washington stood upon a battlefield in V... more
smart; clever
- a)tonto/a
- b)inteligente
- c)viejo/a
- d)listo/a
Correct answer is option 'D'. Can you explain this answer?
smart; clever
a)
tonto/a
b)
inteligente
c)
viejo/a
d)
listo/a
Option D is correct answer.
Direction: In the Following Questions, A Statement of Assertion (A) Is Followed by A Statement of Reason (R). Mark The Correct Choice As:Assertion : The length of the minute hand of a clock is 7cm. Then the area swept by the minute hand in 5 minutes is 125/6cm2.Reason : The length of an arc of a sector of angle θ and radius r is given by l = θ/360 x 2πr- a)Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).
- b)Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).
- c)Assertion (A) is true but reason (R) is false.
- d)Assertion (A) is false but reason (R) is true.
Correct answer is option 'B'. Can you explain this answer?
Direction: In the Following Questions, A Statement of Assertion (A) Is Followed by A Statement of Reason (R). Mark The Correct Choice As:
Assertion : The length of the minute hand of a clock is 7cm. Then the area swept by the minute hand in 5 minutes is 125/6cm2.
Reason : The length of an arc of a sector of angle θ and radius r is given by l = θ/360 x 2πr
a)
Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).
b)
Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).
c)
Assertion (A) is true but reason (R) is false.
d)
Assertion (A) is false but reason (R) is true.
|
|
Rohit Sharma answered • Aug 24, 2021 Class 10 |
Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).
Area swept by minute hand in 5 minutes
(Angle in 5 minutes by minute hand is 30o)
Can anyone give me important numerical question with solution of chapter electricity ?
|
|
Rohit khanna answered • Jun 12, 2020 Class 10 |
Important Numerical Questions with Solutions for Chapter Electricity
Ohm's Law
1. A current of 2 A is flowing through a conductor having a resistance of 10 Ω. Calculate the potential difference across the conductor.
Solution: V = IR = 2 × 10 = 20 V
2. A potential difference of 12 V is applied across a conductor having a resistance of 6 Ω. Calculate the current flowi... more
Ohm's Law
1. A current of 2 A is flowing through a conductor having a resistance of 10 Ω. Calculate the potential difference across the conductor.
Solution: V = IR = 2 × 10 = 20 V
2. A potential difference of 12 V is applied across a conductor having a resistance of 6 Ω. Calculate the current flowi... more
Fetching relevant content for you
|
© EduRev
|
Education Revolution
|
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup