Multiple Choice Questions on Consider the following statements with reference to observations made by an astronaut on the surface........... for General Studies (Level 1) Preparation

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Multiple Choice Questions

Consider the following statements with reference to observations made by an astronaut on the surface...........

General Science (Easy) Physics
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    Consider the following statements with reference to observations made by an astronaut on the surface of moon:

    1. The astronaut finds that a simple pendulum continues to oscillate for a much longer time, than that on the earth.

    2. No atmosphere exists there.

    Which of the statements given above is/are correct ?

    Only 1

    Incorrect Answer

    Only 2

    Incorrect Answer

    Both 1 and 2

    Correct Answer

    Neither 1 nor 2

    Incorrect Answer
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    Explanation:

    Both 1 and 2 are correct 

    There is no atmosphere at moon because escape velocity is less than the root mean square velocity of the molecules at moon. Hence all molecules escape.

    Hence both the statements are true.

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