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A spherical planet has a mass Mp and diameter Dp. A particle of mass m falling freely near the surface of this planet will experience an acceleration due to gravity, equal to
Options
(a) 4GMp / dp²
(b) GMpm / dp²
(c) GMp / dp²
(d) 4GMpm / dp²
Correct Answer:
4GMp / dp²
Explanation:
Gravitational attraction force on a parcticle B,
Fᵥ = GMₚm / (Dₚ / 2)²
Acceleration of particle due to gravity
a = Fᵥ / m = 4GMₚ / D²ₚ
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Topics: Gravitation
(63)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- If the half-life of a material is 10 yr, then in what time, it becomes 1/4th part
- A particle under the action of a constant force moves from rest upto 20 seconds
- A metal plate weighing 750g is to be electroplated with 0.05% of its weight of silver.
- A wheel has angular acceleration of 3.0 rad/sec² and an initial angular speed of 2.00
- A 220 volts input is supplied to a transformer. The output circuit draws
Topics: Gravitation (63)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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