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The escape velocity form the centre of a...

The escape velocity form the centre of a unifrom ring of mass M and radius R is :

A

`sqrt((2GM)/R)`

B

`sqrt((GM)/R)`

C

`sqrt((GM)/(2R))`

D

`sqrt((GM)/R)`

Text Solution

Verified by Experts

The correct Answer is:
A
`1/2mv^(2)-(GMm)/R=0impliessqrt((2GM)/R)`
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