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The kinetic energies of a planet in an e...

The kinetic energies of a planet in an elliptical orbit about Sun, at positions A, B and Care `K_A, K_B and K_C` 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  

A

`K_B gt K_A gt K_C`

B

`K_B gt K_A gt K_C`

C

`K_B gt K_A gt K_C`

D

`K_B gt K_A gt K_C`

Text Solution

Verified by Experts

The correct Answer is:
D
`implies` Point A is perihelion where the velocity of planet is minimum and point B is Aphelion where the velocity of planet is maximum
K.E. `=1/2 mv^2`
`:. K.E. prop v^2 " " ` ( `:. 1/2` m is constant )
`:. K_A gt K_B gt K_C`
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KUMAR PRAKASHAN-GRAVITATION-Section - E Multiple Choice Questions (MCQs)
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