Home Physics Gravitation General Which of the following statements are correc…
Physics Gravitation General MCQ (Single Correct)

Which of the following statements are correct about a planet rotating around the sun in an elliptic orbit:

A
its mechanical energy is constant
B
its angular momentum about the sun is constant
C
its areal velocity about the sun is constant
D
its time period is proportional to r 3

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The correct answer is:
CHECK THE SOLUTION.

(a, b, c)

For a planetry motion Total mechanical Energy = Constant

Angular momentum about the sun = constant

about the sun = constant

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