Class 11 Physics Science

MCQ Questions Class 11 Physics Gravitation with Answers

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CBSE Class 11 Physics Chapter 8 Gravitation Multiple Choice Questions with Answers. MCQ Questions Class 11 Physics Gravitation with Answers was Prepared Based on Latest Exam Pattern. Students can solve NCERT Class 11 Physics Gravitation MCQs with Answers to know their preparation level.

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Students who are searching for NCERT MCQ Questions for Class 11 Physics Gravitation with Answers are compiled here to get good practice on all fundamentals. Know your preparation level on MCQ Questions for Class 11 Physics with Answers. You can also verify your answers from our provided MCQ Class 11 Physics Gravitation with Answers. So, ace up your preparation with MCQ of Chapter 8 Physics Objective Questions.

MCQ Questions Class 11 Physics Gravitation with Answers - Set - 4

Question 1: 

If the mass of earth is eighty times the mass of a planet and diameter of the planet is one fourth that of earth, then acceleration due to gravity on the planet would be   
(a) 7.8 m/s2
(b) 9.8 m/s2
(c) 6.8 m/s2
(d) 2.0 m/s2

Correct Answer – (D)

Question 2 : 

A planet of mass 3 × 1029 gm moves around a star with a constant speed of 2 × 106 ms–1 in a circle of radii 1.5 × 1014 cm. The gravitational force exerted on the planet by the star is   
(a) 6.67 × 1022 dyne
(d) 8 × 1027 Newton
(c) 8 × 1026 N
(d) 6.67 × 1019 dyne

Correct Answer – (C)

Question 3 : 

There are two bodies of masses 103 kg and 105 kg separated by a distance of 1 km. At what distance from the smaller body, the intensity of gravitational field will be zero   
(a) 1/9 km
(b) 1/10 km
(c) 1/11 km
(d) 10/11 km

Correct Answer – (C)

Question 4 : 

The escape velocity of a body depends upon mass as   
(a) m0
(b) m1
(c) m2
(d) m3.

Correct Answer – (A)

Question 5 : 

What would be the length of a sec. pendulum at a planet (where acc. due to gravity is g/4) if it’s length on earth is l   
(a) l/2
(b) 2 l
(c) l/4
(d) 4 l

Correct Answer – (C)

MCQ Questions Class 11 Physics Gravitation with Answers

Question 6 : 

The mass of the moon is 1/81 of earth’s mass and its radius 1/4 that of the earth. If the escape velocity from the earth’s surface is 11.2 km/sec, its value from the surface of the moon will be   
(a) 0.14 kms–1
(b) 0.5 kms–1
(c) 2.5 kms–1
(d) 5.0 kms–1

Correct Answer – (C)

Question 7 : 

Taking the gravitational potential at a point infinte distance away as zero, the gravitational potential at a point A is –5 unit. If the gravitational potential at point infinite distance away is taken as + 10 units, the potential at point A is   
(a) – 5 unit
(b) + 5 unit
(c) + 10 unit
(d) + 15 unit

Correct Answer – (B)

Question 8 : 

The radius of a planet is 1/4th of Re and its acc. due to gravity is 2g. What would be the value of escape velocity on the planet, if escape velocity on earth is ve.     
(a) e v2
(b) ve 2
(c) 2 ve
(d) e v 2

Correct Answer – (A)

Question 9 : 

Time period of a simple pendulum inside a satellite orbiting earth is   
(a) zero
(b) ¥
(c) T
(d) 2 T

Correct Answer – (B)

Question 10 : 

A missile is launched with a velocity less than escape velocity. The sum of its kinetic and potential energies is   
(a) zero
(b) negative
(c) positive
(d) may be positive, negative or zero.

Correct Answer – (B)

MCQ Questions Class 11 Physics Gravitation with Answers

Set 1
Set 2
Set 3
Set 4
Set 5

NCERT Solutions & Download NCERT Textbooks

MCQ Questions Class 11 Physics System of Particles and Rotational Motion with Answers

Set 1
Set 2
Set 3
Set 4
Set 5

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