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A particle of mass M is suited at the centre of a spherical shell of same mass and radius a. The gravitational potential at a point situated at a/2 distance from the centre, will be:
Options
(a) – 3GM / a
(b) – 2GM / a
(c) – GM / a
(d) – 4GM / a
Correct Answer:
– 3GM / a
Explanation:
Potential at the given point = Potential at the point due to the shell + Potential due to the particle
= – GM / a – 2GM / a = – 3GM / a
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Topics: Gravitation
(63)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The magnetic field due to a current carrying circular loop of radius 3 cm at a point
- The threshold wavelength for photoelectric effect of a metal is 6500 Å. The work function
- A spherical body of emissivity e=0.6, placed inside a perfectly black body is maintained
- If potential(in volts) in a region is expressed as V(x,y,z) = 6xy – y + 2yz,
- The oscillation of a body on a smooth horizontal surface is represented by the equation
Topics: Gravitation (63)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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