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Suppose the gravitational force varies i...

Suppose the gravitational force varies inversely as the `n^(th) `power of distance. Then the time period of a planet in circular orbit of radius R around the sun will be proportional to-

A

`r^((n+1)/(2))`

B

`r^((n-1)/(2))`

C

`(1)/(sqrt(r^(n)-1))`

D

`(1)/(sqrt(r^(n)+1))`

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A
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