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The weight of a body on surface of earth is 12.6 N. When it is raised to a height half the radius of earth its weight will be
Options
(a) 2.8 N
(b) 5.6 N
(c) 12.6 N
(d) 25.2 N
Correct Answer:
5.6 N
Explanation:
Weight of body on the surface of earth, mg=12.6 N
At height h, the value of g’ is given by
g’=g (R/R+(R/2))²
=g 4/9
Weight at height, h=mg 4/9
h=12.6×4/9 =5.6 N
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Topics: Gravitation
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Subject: Physics
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Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Alternating current cannot be measured by D.C Ammeter because
- A boat which has a speed of 5 kmh⁻¹ in still water crosses river of width 1 km long
- The mirrors are inclined at an angle of 50⁰. The number of images formed for an object
- The magnetic susceptibility is negative for
- If two slits in Young’s experiment are 0.4 mm apart and fringe width on a screen
Topics: Gravitation (63)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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