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JBD PUBLICATION-Mock test paper 2-EXERCISE
- If vecA = 2 hati + 3 hatj and vecB = 2 hati +1 hatj, find the angle be...
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- Why is a clean hole made when a bullet is fired at a glass window pane...
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- Find the dimensins of gravitational potential energy.
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- A man of mass 60 kg stands on a weighing machine in a lift which is mo...
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- Define kinetic energy?
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- State the principle of conservation of angular momentum.
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- If a man weighs 250 N on the surface of earth, what will his wight hal...
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- Why it is easer to wash clothes in hot water soap solution?
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- Define cross produced of two vectors and state its propertics.
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- Two buildings are 45 m apart. With what velocity must a ball be thrown...
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- Define angle of friction and angle of repose. Find the relationship be...
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- prove that in an elastic collision the relative velocity of approach b...
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- Derive Newton's law of gravitation from Kepler's law.
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- What is Stokes' law? Derive the relation by method of dimensions.
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- A body cools from 60^@ C to 40^@C in 7 minutes. What will be its tempe...
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- Define first law of themodynamics and expain its limitations.
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- Write the postilates of kinetic theory of gases.
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- Write one use of echo.
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- What is simple harmonic motion and prove a simple pendulum oscillates ...
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- Write one use of beats.
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