MCQ Questions for Class 11 Physics Chapter 4 Motion in a Plane with Answers

by

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.

Q1. 10 eV electron is circulating in a plane at right angle to a uniform field of magnetic induction 10-1 Wb/m²
(1G). The orbital radius of electron is:

(a) 12 cm
(b) 16 cm
(c) 11 cm
(d) 18 cm

(c) 11 cm

Q2. A cyclotron can be used to produce high energy:

(a) neutrons
(b) deutrons
(c) β particles
(d) α partifcles

(d) α partifcles

Q3. The radius of the trajectory of a charged particle in a uniform magnetic field is proportional to the:

(a) charge on the particle
(b) energy of the particle
(c) momentum of the particle
(d) all the above

(c) momentum of the particle

Q4. A body makes a displacement of 4 m due East from a point O and then makes displacement of 3 m due North. Its resultant displacement from O

(a) 7 m
(b) 1 m
(c) 5 m
(d) 1 . 2 m

(c) 5 m

Q5. A body is traveling in a circle at constant speed. It

(a) has an inward acceleration
(b) has constant velocity.
(c) has no acceleration
(d) has an outward radial acceleration

(a) has an inward acceleration

Q6. When a body P moves on a circular path, the centripetal acceleration is

(a) directed inwards from P, to the centre of the circle
(b) directed tangential to the circumference of the circle, at P
(c) directed perpendicular to the planc of the circle, at P
(d) directed outward, perpendicular to the circumference of the circle

(a) directed inwards from P, to the centre of the circle

Q7. Which of the following conditions are sufficient and essential for a quantity to be a vector?

a) Magnitude, direction, and addition, subtraction multiplication and division by vector laws
b) Magnitude, direction and combination of vectors by ordinary rules of algebra
c) Magnitude and addition, subtraction, multiplication by ordinary rules of algebra
d) Magnitude and direction

a) Magnitude, direction, and addition, subtraction multiplication and division by vector laws

Q8. How many minimum number of vectors in different planes can be added to give zero resultant?

a) 4
b) 5
c) 3
d) 2

a) 4

Q9. Acceleration due to gravity

a) polar vector
b) a scalar
c) a vector
d) None of these

a) polar vector

Q10. A body is moving along a circular path with variable speed, it has

a) A radical acceleration
b) A tangential acceleration
c) Zero acceleration
d) Both radical and tangential acceleration

a) A radical acceleration

Q11. A body is traveling in a circle at a constant speed.
It

a) has a constant velocity
b) has no acceleration
c) has an inward acceleration
d) has an outward radial acceleration

c) has an inward acceleration

Q12. A car sometimes overturns while taking a turn. When it overturns, it is

a) The inner wheel which leaves the ground first
b) The outer wheel which leaves the ground first
c) both the wheel leave the ground simultaneously
d) Either inner wheel or the outer wheel leaves the ground

a) The inner wheel which leaves the ground first

Q13. A particle is performing a U.C.M. Which is the wrong statement regarding its motion?

a) The velocity vector is tangential to the circle
b) The acceleration vector is tangential to the circle
c) The acceleration vector is directed towards the center of the circle
d) The velocity and acceleration vectors are perpendicular to each other

b) The acceleration vector is tangential to the circle

Q14. The angular velocity depends upon the rate of change of the?

(a) Angular acceleration
(b) Angular Distance.
(c) Angular Displacement.
(d) torque

(c) Angular Displacement.

Q15. A small body attached at the end of an inextensible string completes a vertical circle, then its

(a) angular momentum remains constant
(b) linear momentum remains constant
(c) angular velocity remains constant
(d) total mechanical energy remains constant

(d) total mechanical energy remains constant

Q16. A cyclist goes round a circular path of circumference 343 m in s. The angle made by him, with the vertical is

(a) 440
(b) 420
(c) 430
(d) 450

(d) 450

Q17. For a particle performing a U.C.M. the acceleration is

a) constant in direction
b) constant in magnitude but not in the direction
c) constant in magnitude and direction
d) constant in neither magnitude nor in direction

(b) constant in magnitude but not in the direction

Q18. An airplane is taking a turn in a horizontal plane

a) its remains horizontal
b) it inclines inward
c) it inclines outward
d) its wings become vertical

b) it inclines inward

Q19. The SI unit of magnetic dipole moment is’

(a) Ampere
(b) Ampere metre²
(c) Tesla
(d) None of these

(b) Ampere metre²

Q20. Earth’s magnetism was discovered by:

(a) Gauss
(b) Oersted
(c) Ampere
(d) Gilbert

(d) Gilbert

Q21. When angular velocity changes with respect to time then?

(a) an angular acceleration is produced
(b) a linear acceleration is produced
(c) it constitute a couple
(d) a linear velocity is produced

(a) an angular acceleration is produced

Class 11 Physics MCQs Questions with Answers Chapter Wise

Practicing NCERT Physics MCQs With Answers Pdf Class 11 is one of the best ways to prepare for the CBSE Class 11 board exam. There is no substitute for consistent practice whether one wants to understand a concept thoroughly or one wants to score better. If you have any queries regarding The CBSE Class 11 Physics MCQs Multiple Choice Questions with Answers, drop a comment below and we will get back to you soon.

Leave a Comment