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Find an expression for gravitational intensity due to earth at a point on its free

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If T be the period of satellite revolving just above the surface of a planet whose average density is p, show that `PT^2` is a universal

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Name two factors which determine whether a planet has atmosphere or

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Obtain on expression showing variation of acceleration due to gravity with

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Water is more elastic than air.

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Explain :- 1) Elastic Body 2) Plastic Body 3)

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Which is more elastic rubber or steel?

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Why does not the pressure of atmosphere break

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Two ballons that have same weight and volume contains equal amounts of helium. One is rigid and other is free to expand as outside pressure decreases. When released, which balloon will rise

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If the radius of a soap bubble is r and surface tension of the soap solution is T. Keeping the temperature constant, what is the extra energy needed to double the radius of soap

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What is the energy stored in a soap babble of diameter 4 cm, given the surface tension = 0.07

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Find out the dimensions of co-efficient of

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Water is coming out of a hole made in the wall of tank filled with fresh water. If the size of the hole is increased, will the velocity of efflux

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Under a pressure head, the rate of flow of liquid through a pipe is Q. If the length of pipe is doubled and diameter of pipe is halved, what is the new rate of

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Why the clock pendulums are made of invar, a material of low value of coefficient of linear

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Draw a P – V diagram for Liquid and gas at various temperatures showing critical

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Draw and explain a P – T diagram for water showing different

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On a winter night, you feel warmer when clouds cover the sky than when sky is clear.

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If air is a bad conductor of heat, why do we not feel warm without

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Define the terms reflectance, absorptance and transmittance. How are they

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