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JBD PUBLICATION-Model Test Paper 10-EXERCISE
- Energy of 484 J is spent in increasing the speed of a flywheel from 60...
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- A ball is droped from a 256 m high eower and at the same time another ...
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- Define cross produced of two vectors and state its propertics.
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- Define angle of friction.
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- Calculate the angle through which the cyclist bends with the vertical ...
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- Explain conservative and non-conservative forces with one example of e...
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- What is the value of 'g' at a height near the surface of earth?
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- Define potential enrgy of a body .Find an expression for the potential...
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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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- What is an echo?
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- Derive Newton's formula for velocity of sound in air. Point out the er...
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- Which physical quantity remains conserved during simple harmonic motio...
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- Explain Doppler effect.Find an expression for the change in frequency.
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- Define elasticity.
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- State Newton's law of cooling.
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- Define force of cohesion.
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- Find an expression for the total energy of a liquid.
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- Define centre of mass.
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- State the principle of conservation of angular momentum.
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