SSC Geography Sample Paper NCERT Sample Paper-1

  • question_answer
    We always see the same face of the Moon, because

    A)  It is similar than the Earth

    B)  It revolves on its axis in a direction opposite to that of the Earth

    C)  It takes equal time for revolution around the Earth and rotation on its own axis

    D)  It rotates at the same speed as the Earth around the Sun

    Correct Answer: C

    Solution :

    [c] Because of the effect on the Moon of tidal forces due to the Earth, the same side of the moon always faces the Earth. In other words, it takes the Moon the same amount of time to rotate around once as it does for the Moon to go around the Earth once. Therefore, Earth-bound observers can never see the 'far-side' of the Moon. Tidal forces cause many of the moons of our solar system to have this type of orbit.

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