 MCQ Questions for Class 11 Physics Chapter 8 Gravitation with Answers

# MCQ Questions for Class 11 Physics Chapter 8 Gravitation with Answers

Check the below NCERT MCQ Questions for Class 11 Physics Chapter 8 Gravitation with Answers Pdf free download. MCQ Questions for Class 11 Physics with Answers were prepared based on the latest exam pattern. We have provided Gravitation Class 11 Physics MCQs Questions with Answers to help students understand the concept very well.

(a) 1000 N
(b) 500 N
(c) 250 N
(d) 125 N

(c) 250 N

(a) 10 hours
(b) 20 hours
(c) 40 hours
(d) 80 hours

(c) 40 hours

## Q4. A missile is launched with a velocity less than the escape velocity. The sum of its kinetic and potential energy is

(a) Positive
(b) Negative
(c) Zero
(d) may be positive or negative

(b) Negative

(a) 1032 days
(b) 129 days
(c) 365 days
(d) 730 days

(a) 1032 days

(a) (5/6) mgR
(b) (6/7) mgR
(c) (7/8) mgR
(d) (8/9) mgR

(c) (7/8) mgR

(a) 2E0
(b) E0
(c) 1.5 E0
(d) -E0

(a) 2E0

(a) R
(b) R/2
(c) R/3
(d) R/4

(c) R/3

(a) 11/√2 km/s
(b) 11√2 km/s
(c) 2 km/s
(d) 11 km/s

(d) 11 km/s

## Q10. There is no atmosphere on the moon because

(a) it is closer to the earth
(b) it revolves round the earth
(c) it gets light from the sun
(d) the escape velocity of gas molecules is less than their root mean square velocity here

(d) the escape velocity of gas molecules is less than their root mean square velocity here

(a) 9.8 m/sec²
(b) 4.9 m/sec²
(c) 19.6 m/sec²
(d) 2.45 m/sec²

(a) 9.8 m/sec²

a) area
b) None of these
c) distance
d) dispalacement

a) area

a) 129
b) 730
c) 182.5
d) 365

a) 129

## Q14. If the earth is at one-fourth of its present distance from the sun, the duration of the year will be

a) one-eighth the present year
b) one-sixth the present year
c) one-tenth the present year
d) half the present year

a) one-eighth the present year

## Q15. Newton’s universal law of gravitation applies to

a) both small and big bodies
b) only valid for solar system
c) planets only
d) small bodies only

a) both small and big bodies

## Q16. The value of G varies with

a) None of these
c) depth below the ground
d) height above the earth’s surface

a) None of these

## Q17. Force of gravitational attraction is least

a) at the equator
b) at the poles
c) at a point in between equator and any pole
d) None of these

a) at the equator

## Q18. Assertion : 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.

a) Assertion is correct, reason is incorrect
b) Assertion is incorrect, reason is correct
c) Assertion is correct, reason is correct; reason is not a correct explanation for assertion
d) Assertion is correct, reason is correct; reason is a correct explanation for assertion

a) Assertion is correct, reason is incorrect

a) 9 R
b) 10 R
c) 20 R
d) 8 R

a) 9 R

a) 17
b) 34
c) 8.5
d) 1

a) 17

## Q21. Where will it be profitable to purchase one kilogram sugar?

a) At equator
b) At 40° latitude
c) At poles
d) At 45° latitude

a) At equator

## Q22. Earth is flattened at poles, bulged at the equator. This is due to

a) the centrifugal force is more at the equator than at the poles
b) the angular velocity of spinning about its axis is more at equator
c) the angular velocity of spinning about its axis is less at equator
d) earth revolves round the sun in an elliptical orbit

a) the centrifugal force is more at the equator than at the poles