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.
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 - 2
Question 1:
The masses of two planets are in the ratio 1 : 2. Their radii are in the ratio 1 : 2. The acceleration due to gravity on the planets are in the ratio.
(a) 1 : 2
(b) 2 : 1
(c) 3 : 5
(d) 5 : 3
Correct Answer – (A)
Question 2 :
he mean radius of the earth is R, its angular speed on its own axis is w and the acceleration due to gravity at earths surface is g. The cube of the radius of the orbit of a geo-stationary satellite will be
(a) r²g / w
(b) R²w²/ g
(c) RG w²
(d) R²g / w²
Correct Answer – (D)
Question 3 :
Who among the following first gave the experimental velocity of G?
(a) Cavendish
(b) Copernicus
(c) Brook Taylor
(d) none of these
Correct Answer – (A)
Question 4 :
A body is projected vertically from the surface of the earth of radius R with velocity equal to half of the escape velocity. The maximum height reached by the body is
(a) R
(b) R/2
(c) R/3
(d) R/4
Correct Answer – (C)
Question 5 :
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
Correct Answer – (B)
MCQ Questions Class 11 Physics Gravitation with Answers
Question 6 :
If the distance between the earth and the sun were half its present value, the number of day in a year would have been
(a) 64.5
(b) 129
(c) 182.5
(d) 730
Correct Answer – (B)
Question 7 :
A satellite S is move in an elliptical orbit around the earth. The mass of the satellite is very small compared to the mass of the earth .
(a) The acceleration of S is always directed towards the centre of the earth.
(b) The angular momentum of S about the centre of the earth changes in direction, but its magnitude remains constant.
(c) The total mechanical energy of S varies periodically with time.
(d) The linear momentum of S remains constant in magnitude.
Correct Answer – (A)
Question 8 :
The escape velocity of projection from the earth is approximately (R = 6400 km)
(a) 7 km/sec
(b) 112 km/sec
(c) 12.2 km/sec
(d) 1.1 km/sec
Correct Answer – (C)
Question 9 :
If the radius of the earth were to be raise by 1% its mass remaining the same, the acceleration due to gravity on the surface of the earth will
(a) increase by 1%
(b) decrease by 2%
(c) decrease by 1%
(d) increase by 2%
Correct Answer – (D)
Question 10 :
The value of g at a particular point is 9.8 m/sec² suppose the earth suddenly shrink uniformly to half its present size without losing any mass. The value of g at the same point (assuming that the distance of the point from the centre of the earth does not shrink) will become
(a) 9.8 m/sec²
(b) 4.9 m/sec²
(c) 19.6 m/sec²
(d) 2.45 m/sec²
Correct Answer – (A)
- NCERT Solutions Class 11 Physics Chapter 1 : Physical world
- NCERT Solutions Class 11 Physics Chapter 2 : Units And Measurements
- NCERT Solutions Class 11 Physics Chapter 3 : Motion In A Straight Line
- NCERT Solutions Class 11 Physics Chapter 4 : Motion In A Plane
- NCERT Solutions Class 11 Physics Chapter 5 : Laws of Motion
- NCERT Solutions Class 11 Physics Chapter 6 : Work Energy Power
- NCERT Solutions Class 11 Physics Chapter 7 : Rotational-Motion
- NCERT Solutions Class 11 Physics Chapter 8 : Gravitation
- NCERT Solutions Class 11 Physics Chapter 9 : Mechanical Properties of Solids
- NCERT Solutions Class 11 Physics Chapter 10 : Mechanical Properties of Fluids
- NCERT Solutions Class 11 Physics Chapter 11 : Thermal Properties of Matter
- NCERT Solutions Class 11 Physics Chapter 12 : Thermodynamics
- NCERT Solutions Class 11 Physics Chapter 13 : Kinetic Theory
- NCERT Solutions Class 11 Physics Chapter 14 : Oscillations
- NCERT Solutions Class 11 Physics Chapter 15 : Waves
