Gravitation class 11 MCQ
Last updated on July 27th, 2023 at 10:14 am
Gravitation (class 11) MCQ – Set 4
16. The ratio of the inertial mass to gravitational mass is equal to
(a) 0.5
(b) 1
(c) 2
(d) no fixed number
(b) 1
17. Who among the following gave first the experimental value of G
(a) Cavendish
(b) Copernicus
(c) Brok Taylor
(d) None of these
(a) Cavendish
18. Mass of the Earth has been determined through
(a) use of Kepler’s T^2/R^3 constancy law and Moon’s period
(b) sampling the density of Earth’s crust and using Earth’s radius
(c) Cavendish’s determination of G and using Earth’s radius and g at its surface
(d) use of periods of satellites at different heights above the Earth’s surface and known radius of Earth
(c) Cavendish’s determination of G and using Earth radius and g at its surface
19. Two spheres of masses m and M are situated in the air and the gravitational force between them is F. The space around the masses is now filled with a liquid of specific gravity 3. The gravitational force will now be
(a) 3 F
(b) F
(c)F/3
(d)F/9
(b) F
20. Consider Earth to be a homogeneous sphere. Scientist A goes deep down in a mine and scientist B goes high up in a balloon. The gravitational field measured by
(a) A goes on decreasing and that by B goes on increasing
(b) B goes on decreasing and that by A goes on increasing
(c) each decreases at the same rate
(d) each decreases at different rates
(d) each decreases at different rates
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