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Question (11)
QN0035434

Intensity of the gravitational field inside the hollow spherical shell is

  • (A)

    variable

  • (B)

    minimum

  • (C)

    maximum

  • (D)

    zero

Correct Answer: D
Explanation:

At a point inside a spherical shell, the value of gravitational intensity, .

If  then gravitational field is necessarily zero.

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Question (12)
QN0035435

Radius of moon is  times that of earth and mass is  times that of earth. The point at which gravitational field due to earth becomes equal and opposite to that of moon, is (Distance between centres of earth and moon is , where  is radius of earth) 

  • (A)

    from centre of moon

  • (B)

    from surface of moon

  • (C)

    from centre of earth

  • (D)

    from centre of earth

Correct Answer: D
Explanation:

from centre of earth.

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