Self Studies
Self Studies
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Gravitation Tes...

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  • Question 1
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    An earth satellite of mass m revolves in a circular orbit at a height h from the surface of the earth. R is the radius of the earth and g is acceleration due to gravity at the surface of the earth. The velocity of the satellite in the orbit is given by

  • Question 2
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    Two satellites of masses m1 and m2 (m1 > m2) are revolving round the earth in circular orbits of radius r1 and r2(r1>r2) respectively. Which of the following statements is true regarding their speeds v1 and v2 ?

  • Question 3
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    A satellite which is geostationary in a particular orbit is taken to another orbit. Its distance from the centre of earth in new orbit is 2 times that of the earlier orbit. The time period in the second orbit is

  • Question 4
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    The time period of a geostationary satellite at a height 36000 km is 24 hr. A spy satellite orbits very close to earth surface (R = 6400 km). What will be its time period ?

  • Question 5
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    The period of a satellite in a circular orbit around a planet is independent of

  • Question 6
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    The relay satellite transmits the T.V. programme continuously from one part of the world to another because its

  • Question 7
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    A geostationary satellite

  • Question 8
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    A satellite revolves around the earth in an elliptical orbit. Its speed

  • Question 9
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    The orbital velocity of an artificial satellite in a circular orbit just above the earth\'s surface is v. For a satellite orbiting at an altitude of half of the earth\'s radius, the orbital velocity is

  • Question 10
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    In a satellite if the time of revolution is T, then K.E is proportional to

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