JEE Main & Advanced Physics Gravitation / गुरुत्वाकर्षण Question Bank

done Numerical Value Type Questions - Gravitation Total Questions - 14

• question_answer1)
  The escape velocity for a rocket on earth is 11.2 km/sec. Its value on a planet where acceleration due to gravity is double that on the earth and diameter of the planet is twice that of earth will be in km/sec.
  View Solution play_arrow

• question_answer2)
  Artificial satellites can often be seen as bright stars high in the sky long after sunset. What must be the minimum altitude (in km) of satellite moving above the earth?s equator for it to be visible directly overhead two hours after sunset? The radius of earth is 6400 km-
  View Solution play_arrow

• question_answer3)
  The acceleration due to gravity on the surface of the moon is 1/6 that on the surface of earth and the diameter of the moon is one-fourth that of earth. The ratio of escape velocities on earth and moon is\[\sqrt{a}\]. Find value of a.
  View Solution play_arrow

• question_answer4)
  A Geostationary satellite is revolving around the earth. To make it escape from gravitational field of earth, its velocity must be increased. (in percent)
  View Solution play_arrow

• question_answer5)
  A satellite orbits a planet, moving very close to its surface. By what maximum factor can its kinetic energy be increased suddenly, without change in direction, such that it still remains in orbit?
  View Solution play_arrow

• question_answer6)
  Assuming earth to be a sphere of uniform mass density, how much would a body weight (in N) half way down the centre of the earth, if it weighed 100 N on the surface?
  View Solution play_arrow

• question_answer7)
  A mass M is split into two parts m and (M-m), which are then separated by a certain distance. The ratio m/M which maximizes the gravitational force between the parts is?
  View Solution play_arrow

• question_answer8)
  If a body of mass 10 kg is taken to the centre of the earth, its weight will be?
  View Solution play_arrow

• question_answer9)
  Find out the orbital velocity (in km/sec) of satellite if it's orbit is closet the surface of any planet whose mass is 18769 times of mass of earth & radius is 526 times of radius of earth.
  View Solution play_arrow

• question_answer10)
  If the distance between the earth and the sun becomes half its present value, the number of days in a year would have been?
  View Solution play_arrow

• question_answer11)
  For a satellite to revolve very near to the surface of the earth, the orbital velocity (in km/sec) should be about?
  View Solution play_arrow

• question_answer12)
  The escape velocity from earth is 11.2 km/s. If a body is to be projected in a direction making an angle \[45{}^\circ \]to the vertical, then the escape velocity (in km/sec) is?
  View Solution play_arrow

• question_answer13)
  A particle of mass 100 g is thrown vertically upward with a speed of 5 m/s. The magnitude of work done by the force of gravity during the time the particle goes up is? (in joule)
  View Solution play_arrow

• question_answer14)
  The mass & diameter of a planet are twice those of earth. The period (in sec) of oscillation of pendulum on this planet is\[\sqrt{a}\]. Find the value of a. (if it a second?s pendulum on earth).
  View Solution play_arrow