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Two particles of mass m and M are initially at rest and infinitely separated from each other. Due to mutual interaction, they approach each other.
Their relative velocity of approach at a separation d between them, is

A

`[2G(M+m)]^(1//2)`

B

`sqrt((2G(M+m))/(d))`

C

`sqrt((2Gd)/(M+m))`

D

`2G((M+m)/(d))`

Text Solution

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The correct Answer is:
B
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