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No worries I will provide you National Eligibility and Entrance Test UG exam paper, so that it would be easy for you to prepare. Here is the exam paper During the vapourization of some amount of water at 373K at atmospheric pressure which of the following statements is correct ? a) Work is done by the steam – water system on the atmosphere b) Work is done on the steam – water system by the atmosphere c) The internal energy of the steam – water system increases d) The internal energy of the steam – water system decreases 1. a, c only 2. b, d only 3. b, c only 4. a, d only Which of the following is not correct about the centre of mass? 1) It depends on the frame of reference 2) The angular momentum of a system about the centre of mass is always zero 3) Internal forces do not affect the motion of centre of mass 4) Centre of mass may or may not coincide with centre of gravity Two billiard balls of the same size (radius r ) and same mass are in contact on a billiard table. A third ball also of the same size and mass strikes them symmetrically and remains at rest after the impact. The coefficient of restitution between the balls is 1) 1/3 2) 2/3 3) 1/2 4) 3/4 ![]() ![]() For full information please check the file |
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