Q.

If the angular momentum of a body of mass 'm'  rotating in a circle of  radius 'r' is 'L' then the centripetal force on it is

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a

L/mr

b

L2/mr2

c

L2/mr3

d

L2r2/ m

answer is C.

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Detailed Solution

L = mvr  v=LmrCentripetal force is= mv2r = mrL2m2r2                                       = L2mr3
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