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Q.

The orbital angular momentum of a satellite revolving at a distance r from the centre is L. If the distance is increased to 16r, then the new angular mormentum will be

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a

16 L

b

64 L

c

L4

d

4 L

answer is D.

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Detailed Solution

L=mvr=mGMrr=mGMr∴  L∝r⇒  L1L2=r1r2                   ∵L1=Lr1=rr2=16r⇒  LL2=r16r⇒LL2=14⇒L2=4L
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