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Introduction to Gravitation : Kepler's Laws

A planet is r...

Question

A planet is revolving round the sun in an elliptical orbit as shown in figure. Select correct alternatives.

A

Its total energy is negative at D

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B

Its angular momentum is constant

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C

Net torque on the planet about sun is zero

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D

Linear momentum of the planet is conserved

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Solution

The correct options are
A Its total energy is negative at D
B Its angular momentum is constant
C Net torque on the planet about sun is zero

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