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

Here you will find NCERT MCQ Questions for Class 11 Physics with Answers PDF Free Download based on the important concepts and topics given in the textbook as per CBSE new exam pattern. This may assist you to understand and check your knowledge about the chapters. Students also can take a free test of the Multiple Choice Questions of Class 11 Physics. Each question has four options followed by the right answer. These MCQ Questions are selected supported by the newest exam pattern as announced by CBSE.

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

(c) 250 N

## Q2. The correct option, if speeds of gamma rays, X-rays and microwave are Vg, Vx an Vm respectively will be.

(a) Vg > Vx > Vm
(b) Vg < Vx < Vm (c) Vg > Vx > Vm
(d) Vg = Vx = Vm

(d) Vg = Vx = Vm

## Q3. Which of the following has minimum wavelength?

(a) Blue light
(b) γ-rays
(c) infrared rays
(d) microwave

(b) γ-rays

(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

(b) Microwaves
(c) γ-rays

(c) γ-rays

(a) 11/v2 km/s
(b) 11v2 km/s
(c) 2 km/s
(d) 11 km/s

(d) 11 km/s

(a) X-rays
(b) γ-rays
(d) Microwave

(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

## Q11. In planetary motion

a) the total angular momentum remains constant
b) the linear speed remains constant
c) neither the angular momentum nor angular speed remains constant
d) the angular speed remains constant

a) the total angular momentum remains constant

## Q12. From Maxwell’s hypothesis, a charging electric field gives rise to

(a) an electric field.
(b) an induced emf.
(c) a magnetic field.
(d) a magnetic dipole.

(c) a magnetic field.

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. Electromagnetic waves are transverse in nature is evident by

(a) polarisation.
(b) interference,
(c) reflection.
(d) diffraction.

(a) polarisation.

## 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. 10 cm is a wavelength corresponding to the spectrum of

(a) infrared rays
(b) ultraviolet rays
(c) microwaves
(d) X-rays

(c) microwaves

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

## Class 11 Physics MCQs Questions with Answers Chapter Wise

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