NEET | 2018Basic Maths and Units and DimensionsHard

Question

The kinetic energies of a planet in an elliptical orbit about the Sun, at positions A, B and C are KA, KB and KC respectively. AC is the major axis and SB is perpendicular to AC at the position of the Sun S as shown in the figure. Then

Options

A.

KA < KB < KC

B.

KA > KB > KC

C.

KB < KA < KC

D.

KB > KA > KC

Solution

L =muv = Iω = constant
KE=L22lIA < IB < IC
KEA > KEB > KEC

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