Gravitation Question 263

Question:Two satellite A and B, ratio of masses 3 : 1 are in circular orbits of radii r and 4r. Then ratio of total mechanical energy of A to B is [DCE 2002]

Options:

A) 1 : 3

B) 3 : 1

C) 3 : 4

D) 12 : 1

Show Answer

Answer:

Correct Answer: D

Solution:

Total mechanical energy of satellite [E=GMm2r]

Þ [EAEB=mAmB×rBrA]

Þ[31×4rr] =[121]



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