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InterviewSolution
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The orbital angular momentum of a satellite revolving at a distance r from the centre is L . If the distance is increased to 16 r, then the new angular momentum will beA. `16 L`B. `64 L`C. `(L)/(4)`D. `4 L` |
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Answer» Correct Answer - D `L=mvr=msqrt((GM)/(r))r=m sqrt(GMr)` `:. L prop sqrt(r)` `rArr (t_(1))/(t_(2))=sqrt((r_(2))/r_(2))rArr (L)/(L_(2))=sqrt((r_(1))/(r_(2)))" "{(because L_(1)= "L,"),(" "r_(1)=r),(" "r_(2)=16 r):}}` `rArr (L)/(L_(2))=sqrt((r)/(16r))rArr(L)/(L_(2))=(1)/(4)rArrL_(2)=4L`. |
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