NCERT Class 11 Physics MCQ Chapter 6 Systems of Particles and Rotational Motion Solutions, AHSEC Class 11 Physics Multiple Choice Question Answer to each chapter is provided in the list so that you can easily browse throughout different chapters NCERT Class 11 Physics MCQ Chapter 6 Systems of Particles and Rotational Motion Question Answer and select needs one.
Class 11 Physics MCQ Chapter 6 Systems of Particles and Rotational Motion
Also, you can read the SCERT book online in these sections NCERT Class 11 Physics Multiple Choice Solutions by Expert Teachers as per SCERT (CBSE) Book guidelines. AHSEC Class 11 Physics MCQ Solutions. These solutions are part of SCERT All Subject Solutions. Here we have given HS 1st Year Physics Objective Type Question Answer for All Subjects, You can practice these here.
Systems of Particles and Rotational Motion
Chapter: 6
| PART – Ⅰ |
MULTIPLE CHOICE QUESTION ANSWER
1. If the linear momentum is increased by 50%, the kinetic energy will increase by:
(i) 50%
(ii) 100%
(iii) 125%
(iv) 25%
Ans: (iii) 125%
2. The SI unit of moment of inertia is:
(i) kg m²
(ii) kg m/s²
(iii) N m²
(iv) m/s
Ans: (i) kg m².
3. Angular velocity is measured in:
(i) m/s
(ii) rad/s
(iii) kg m/s²
(iv) kg m²
Ans: (ii) rad/s.
4. What is the formula for gravitational force at a point outside the earth?
(i) F = GMm/r.
(ii) F = GMm/r2.
(iii) F = GMm.
(iv) F = Gm2.
Ans: (ii) F = GMm/r2.
5. The symbol g denotes:
(i) Gravitational constant.
(ii) Acceleration due to gravity.
(iii) Mass.
(iv) Radius of earth.
Ans: (ii) Acceleration due to gravity.
6. For the same total mass, which of the following will have the largest moment of inertia about an axis passing through the centre of gravity and perpendicular to the plane of the body?
(i) A disc of radius a.
(ii) A ring of radius a.
(iii) A square lamina of side 2 a.
(iv) Four rods forming a square of side 2 a.
Ans: (iv) Four rods forming a square of side 2 a.
7. If the kinetic energy of a body increases by 0.1%, the percent increase of its momentum will be:
(i) 0.05%
(ii) 0.1%
(iii) 1.0%
(iv) 10%
Ans: (i) 0.05%
8. The acceleration due to gravity on the surface of the earth depends on:
(i) Mass of earth only.
(ii) Radius of earth only.
(iii) Mass and radius of earth.
(iv) Altitude.
Ans: (iii) Mass and radius of earth.
9. The value of g at a distance of twice the earth’s radius 2R from the centre is:
(i) g/2
(ii) g/4
(iii) g/8
(iv) g/16
Ans: (ii) g/4
10. Which type of force is gravitational force?
(i) Non-conservative.
(ii) Conservative.
(iii) Contact.
(iv) Electrostatic.
Ans: (ii) Conservative.
11. One circular ring and one circular disc both having the same mass and radius. The ratio of their moments of inertia about the axes passing through their centres and perpendicular to planes will be:
(i) 1:1
(ii) 2:1
(iii) 1:2
(iv) 4:1
Ans: (ii) 2:1
12. What is escape velocity on Earth approximately?
(i) 8.2 km/s.
(ii) 9.3 km/s.
(iii) 11.2 km/s.
(iv) 12.2 km/s.
Ans: (iii) 11.2 km/s.
13. A satellite revolves around the Earth due to:
(i) Gravitational force.
(ii) Centrifugal force.
(iii) Magnetic force.
(iv) Nuclear force.
Ans: (i) Gravitational force.
14. What is the unit of gravitational potential?
(i) N/kg.
(ii) J/kg.
(iii) m/s².
(iv) J.
Ans: (ii) J/kg.
15. The escape speed from the Moon is:
(i) 1.2 km/s.
(ii) 2.3 km/s.
(iii) 4.8 km/s.
(iv) 11.2 km/s.
Ans: (ii) 2.3 km/s.
