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Two earth satellites of same mass are re...

Two earth satellites of same mass are revolving round the earth in circular orbits of radii 6400km and 19,200 km from the centre of the earth. Ratio of their orbital velocities will be:

A

`1:sqrt(3)`

B

`sqrt(3):1`

C

`1:3`

D

`3:1`

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The correct Answer is:
B
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