AP EAMCET Medical 2016 Paper

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Question : 105 of 160

Marks: +1, -0

A proton in motion makes head on collision with an unknown particle at rest. If thecollision is perfectly elastic and proton rebounds back with

1

9

of its initial kinetic energy after collision, the mass of unknown part is

Equal to mass of proton
Twice the mass of proton
3 times the mass of proton
5 times the mass of proton

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