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Two point masses of mass 4m and m respec...

Two point masses of mass `4m` and `m` respectively separated by `d` distance are revolving under mutual force of attraction. Ration of their kinetic energies will be:

A

`1:4`

B

`4:1`

C

`1:1`

D

`1:16`

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The correct Answer is:
A
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