Gravitation class 11 MCQ

Last updated on July 27th, 2023 at 10:14 am

Gravitation (class 11) MCQ – Set 7

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31. In the motion of an object under the influence of the gravitational force of another object, which of the following quantity is not conserved?

(a) Linear momentum

(b) Angular momentum

(c) Total mechanical energy

(d) None of these

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32. As we go down below the earth’s surface, the acceleration due to gravity decreases by a factor (d =distance, R =radius of earth)

(a) 1 + d/R

(b) 1 – R/d

(c) 1- d/R

(d) remains constant

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33. There is no atmosphere on the moon, because of

(a) smaller value of G

(b) smaller value of g

(c) smaller value of R

(d) smaller value of m

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34. If measured by a spring balance, then 1 kg of salt will weigh more at

(a) equator

(b) poles

(c) centre of earth

(d) same at all places

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35. The gravitational potential energy associated with two particles separated by a distance r, when r->infinity, is given by

(a) Gm1m2/r

(b) – Gm1m2/r

(c) zero

(d) infinity

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