Self Studies

Gravitation Tes...

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  • Question 1
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    The escape velocity of 10g body from the earth is 11.2kms111.2 km s^{-1}. Ignoring air resistance, the escape velocity of 10 kg of the iron ball from the earth will be

  • Question 2
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    ACCELERATION DUE TO GRAVITY BELOW AND ABOVE THE SURFACE OF EARTH
    Which of the following statements is correct?

  • Question 3
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    ESCAPE SPEED
    The escape speed velocity of a body from the earth depends on
    (i) the mass of the body
    (ii) the location from where it is projected.
    (iii) the direction of projection
    (iv) the height of the location from where the body is launched.

  • Question 4
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    Which of the following statements is correct regarding the universal gravitational constant G?

  • Question 5
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    The escape velocity from the surface of the earth is (where RER_{E} is the radius of the earth)

  • Question 6
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    The areal velocity and the angular momentum of the planet are related by which of the following relations?
    (where mp{m}_{p} is the mass of the planet)

  • Question 7
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    The dependence of acceleration due to gravity g on the distance r from the centers of the earth assumed to be a sphere of radius R of uniform density is as shown figure below.
    The correct figure is

  • Question 8
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    The acceleration due to gravity gg and density of the earth ρ\rho are related by which  of the following relations.? (where G is the gravitational constant and RE{R}_{E} is the radius of the earth)

  • Question 9
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    The escape velocity for a body projected vertically upwards from the surface of the earth is 11.211.2 km s1s^{-1}. If the body is projected in a direction making an angle 45o45^o with the vertical, the escape velocity will be:

  • Question 10
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    In order to shift a body of mass m from a circular orbit of radius 3R3R to a higher orbit of radius 5R5R around the earth, the work done is?

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