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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
- A marble block of mass 2 kg lying on ice when given a velocity of 6 m/s is stopped
- A pellet of mass 1 g is moving with an angular velocity of 1 rad/s along a circle
- Six molecules have speeds 2 units, 5 units, 3 units, 6 units, 3 units and 5 units
- Copper of fixed volume V is drawn into wire of length l. When this wire is subjected
- According to Hook’s law, force is proportional to
Topics: Gravitation (63)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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