A planet of mass 
revolves in an elliptical orbit around the sun, so that its maximum and minimum distance from the sun are equal to 
and 
, respectively. The angular momentum of this planet relative to the sun is
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
A
Using conservation of angular momentum,
As velocities are perpendicular to the radius vectors at apogee and perigee.
Using conservation of energy,
By solving the above equations, 
Hence, 
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