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

NCERTCOURSE.COM given here the NCERT chapter-wise Multiple Choice Questions from Class 11 Physics book Chapter 4 Motion in a Plane with Answers Pdf free download. 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 Motion in a Plane. 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.

MCQ Class 11 Physics Chapter 4 With Answers

Q1. The angle between centripetal acceleration and tangential acceleration is?

(a) 180°
(b) 0°
(c) 90°
(d) 45°

Q2. When a disc containing mercury and water is rotated rapidly about a vertical axis, then the outermost place in the disc will be taken by:

(a) water
(b) mercury
(c) sometimes water and sometimes mercury
(d) none of these.

(b) mercury

Q3. 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

Q4. 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

Q5. A body travelling in a circular path at uniform speed has :

(a) constant velocity
(b) tangential acceleration
(c) inward acceleration
(d) outward acceleration

Q6. A car is moving on a circular path and takes a turn. If R1 and R² are the reactions on the inner and outer wheels respectively, then

(a) R1 = >R²
(b) R1 = R²
(c) R1 < R² (d) R1 > R²

Q7. 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

Q8. Acceleration due to gravity

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

(a) polar vector

Q9. What is the minimum number of unequal forces whose resultant will be zero?

(a) 1
(b) 2
(c) 3
(d) 4

Q10. A body of mass 500 gram is rotating in a vertical circle of radius 1 m. What is the difference in its kinetic energies at the top and the bottom of the circle?

(a) 4.9 J
(b) 19.8 J
(c) 2.8 J
(d) 9.8 J

(d) 9.8 J

Q11. 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

Q12. Two vectors A and B lie in a plane, a third vector C lies outside this plane, the sum of these vectors A + B + C (a) can be zero

(a) can never be zero
(b) can be zero
(c) Both
(d) None of these

(a) can never be zero

Q13. Three vectors A, B and C satisfy the relation A.B = 0 and A.C = 0. The vector A is parallel to

(a) B
(b) C
(c) B × c
(d) B.C

Q14. One radian is equal to?

(a) 57.7°
(b) 53.7°
(c) 59.3°
(d) 57.3°

(d) 57.3°

Q15. A car sometimes overturns while taking a turn. When it overturns, it is

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

(a) the inner wheel which leaves the ground first

Q16. One° (1°) is equal to?

(a) 0.1745 rad
(b) 0.01745 rad
(c) 0.001745 rad
(d) 7.1745 rad

(b) 0.01745 rad

Q17. The path followed by a projectile is called its?

(a) Territory
(b) Treasury
(c) Tractor
(d) Trajectory

(d) Trajectory

Q18. A particle moves in a plane with a constant acceleration in a direction different from the initial velocity. The path of the particle is a/an

(a) parabola
(b) straight line
(c) arc of a circle
(d) ellipse

(a) parabola

Q19. If a body A of mass M is thrown with velocity v at angle of 30° to the horizontal and another body B of the same mass is thrown with the same speed at an angle of 60° to the horizontal, the ratio of the horizontal ranges of A and B will be

(a) 1 : 3
(b) 1 : 1
(c) √3 : 1
(c) 1 : √3

(b) 1 : 1

Q20. A body gose round the circumference of a circle of radius 2 m with an angular velocity of 2 rad/s. Its centripetal acceleration is

(a) 3 m/s²
(b) 1 . 5 m/s²
(c) 6 m/s²
(d) 12 m/s²

(d) 12 m/s²

Q21. A body travels along the circumference of a circle of radius 2 m with a linear velocity of 6 m/s . Then its angular velocity is

(a) 6 rad /s
(b) 3 rad /s
(c) 2 rad / s
(d) 4 rad / s

(b) 3 rad /s

Q22. In the projectile motion, if air resistance is ignored, the horizontal motion is at

(a) constant velocity
(b) constant retardation
(c) constant acceleration
(d) variable acceleration

(a) constant velocity

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