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Questions  

The correct graph representing the variation of total energy (Et), kinetic energy  (Ek) and potential energy (U) of a satellite with its distance from the centre of earth is

a
b
c
d

detailed solution

Correct option is C

U=−GMmr,K=GMm2r and E=−GMm2rFor a satellite U,K and E varies with r and also U and E remains negative whereas K remain always positive.

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