Kinetic energy of a particle is increased by 4 times. What will be the relation between initial and finalmomentum? [JIPMER 2018]

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p2=2p1

p2=p1/2

p2=p1

p2=4p1

answer is A.

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Detailed Solution

Relation between kinetic energy and momentum isp1=2mK1∵ Kinetic energy is increased by 4 times, then K2=4K1Hence, p2=2mK2=2m4K1p2=22mK1 or p2=2p1

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