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PREMIERS PUBLISHERS-WORK, ENERGY AND POWER -MULTIPLE CHOICE QUESTIONS (OTHER IMPORTANT QUESTIONS & ANSWERS)
- When a body does some work, we can say that work done by the body is
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- A body is said to be doing a negative work if :
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- Consider the following two statements. (A) Linear momentum of a syst...
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- From the following statements select the incorrect statements.
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- If a stone is released from a tower, then its total energy during its ...
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- Two springs have their force constants k(1) and k(2) (k(2) gt k(1)) . ...
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- Which of the following statements is wrong?
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- A rock of mass m dropped to the ground from a height h. A second rock ...
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- The potential energy of a system increases, if work is done
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- A bullet is fired from a rifle which recoils after firing. The ratio o...
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- In the following question a statement of assertion is followed by a st...
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- If the force acting on a body is inversely proportional to its speed, ...
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- A particle is dropped from a height h. A constant horizontal velocity ...
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- Select the odd man out from the following equations related to values ...
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- If a body is raised from the surface of the earth upto height R, what ...
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- In the following question select the correct statement. The law of c...
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- Principle of conservation of linear momentum:
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- Two balls at the same temperature collide. What is conserved?
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- Two bodies of masses 3m and 9m are moving with equal kinetic energies....
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- In perfect elastic collision, the relative velocity of the body before...
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