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The nearest planet to earth is ……… ....

The nearest planet to earth is ……… .

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Knowledge Check

  • The length of a second's pendulum on the surface of the Earth is 0.9 m. The length of the same pendulum on surface of planet X such that the acceleration of the planet X is n times greater than the Earth is………….

    A
    0.9n
    B
    `(0.9)/(n)m`
    C
    `0.9n^(2)m`
    D
    `(0.9)/(n^(2))`

  • A radio signal sent towards the distant planet, returns after "t" s. If "c" is the speed of radio waves then the distance of the planet from the Earth is...............

    A
    `c t/2`
    B
    `ct^(2)`
    C
    2ct
    D
    `c^(2) (t^(2))/(2)`

  • A planet has the radius twice that of earth and has same density as that of earth. If V_(p)andV_(e) are the escape velocities for the planet and earth, then which of the following correct relation is:

    A
    `V_(p)=V_(e)`
    B
    `V_(e)=2V_(p)`
    C
    `V_(p)=2V_(e)`
    D
    `V_(p)=sqrt(2)V_(e)`

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    A planet has the radius twice that of earth and has same density as that of earth. If V_(p)andV_(e) are the escape velocities for the planet and earth, then which of the following correct relation is:

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