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A particle of mass m is moving in a circ...

A particle of mass m is moving in a circular orbit of radius r in a force field given by `vecF = -k/r^2 hatr` . The angular momentum L of the particle about the centre varies as

A

`L prop sqrtr`

B

`L prop r^(3//2)`

C

`L prop1/ (sqrtr)`

D

`L prop r^(1//3)`

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