Home Physics Gravitation NCERT Exampler Both the Earth and the Moon are subject to t…
Physics Gravitation NCERT Exampler MCQ (Single Correct)

Both the Earth and the Moon are subject to the gravitational force of the Sun. As observed from the Sun, the orbit of the Moon:

A
Will be elliptical
B
Will not be strictly elliptical because the total gravitational force on it is not central
C
Is not elliptical but will necessarily be a closed curve
D
Deviates considerably from being elliptical due to influence of planets other than the Earth

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The correct answer is:
B

As observed from the Sun, two types of forces are acting on the Moon one is due to

gravitational attraction between the Sun and the Moon and the other is due to gravitational attraction between the Earth and the Moon. Hence, total force on the Moon is not central.

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