# NCERT Class 11 Chapter 8 Physics Gravitation MCQ | Questions & Answers

NCERT Class 11 Chapter 8 Physics Gravitation MCQ | Questions & Answers: Give a try for the NCERT Class 11 Chapter 8 Physics Gravitation MCQ Quiz which you find below. Submit your answers at the end to get instant results. All the best!

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1. In planetary motion

2. Kepler’s second law may be stated as "under the influence of central force, in equal interval of time, position vector sweeps out equal

3. If the distance of earth is halved from the sun, then the no. of days in a year will be

4. If the earth is at one-fourth of its present distance from the sun, the duration of the year will be

5. Newton's universal law of gravitation applies to

6. The value of G varies with

7. Force of gravitational attraction is least

8. If earth suddenly stops rotating about its axis, then the value of acceleration due to gravity will become same at all the places.
Reason : The value of acceleration due to gravity depends upon the rotation of the earth.

9. The height of the point vertically above the earth's surface, at which acceleration due to gravity becomes 1% of its value at the earth's surface is (Radius of the earth = R)

10. The speed of earth’s rotation about its axis is w. Its speed is increases to x times to make the effective acceleration due to gravity equal to zero at the equator. Then x is