# MCQs for Physics Class 11 with Answers Chapter 4 Motion in a Plane

Students of class 11 Physics should refer to MCQ Questions Class 11 Physics Motion in a Plane with answers provided here which is an important chapter in Class 11 Physics NCERT textbook. These MCQ for Class 11 Physics with Answers have been prepared based on the latest CBSE and NCERT syllabus and examination guidelines for Class 11 Physics. The following MCQs can help you to practice and get better marks in the upcoming class 11 Physics examination

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

MCQ Questions Class 11 Physics Motion in a Plane provided below have been prepared by expert teachers of grade 11. These objective questions with solutions are expected to come in the upcoming Standard 11 examinations. Learn the below provided MCQ questions to get better marks in examinations.

Question. A particle has a displacement of 2 units along the x -axis, 1 unit along the y – axis and 2 units along the z – axis. Then the resultant displacement of the particle is
(a) 3 units
(b) 5 units
(c) 4 units
(d) 1 units

A

Question. Large angle produces?
(a) high trajectory
(b) curve trajectory
(c) flat trajectory
(d) straight trajectory

A

Question. 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

C

Question. 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

Question. The angle between centripetal acceleration and tangential acceleration is?
(a) 180°
(b) 0°
(c) 90°
(d) 45°

C

Question. He dimensional formula for normal acceleration is
(a) LT-1
(b) L2T2
(c) L3T-2
(d) LT-2

D

Question. One° (1°) is equal to?

B

Question. A book is pushed with an initial horizontal velocity of 5.0 meters per second off the top of a desk. What is the initial vertical velocity of the book?
(a) 10. m/s
(b) 0 m/s
(c) 50 m/s
(d) 2.5 m/s

B

Question. 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

B

Question. One radian is equal to?
(a) 57.7°
(b) 53.7°
(c) 59.3°
(d) 57.3°

D

Question. 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

Question. One radian is defined to be the angle subtended where the arc length S is exactly equal to the?
(b) diameter of the circle.
(c) circumference of the circle.
(d) half of radius of the circle.

A

Question. A body is allowed to slide on a frictional less track from rest under-gravity. The track ends in a circular loop of diameter D. What should be the minimum height of the body in terms of D, so that it may successfully complete the loop?
(a) D
(b) 4/5 D
(c) 5/4 D
(d) 2D

C

Question. 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

Question. Which is a constant for a freely falling object?
(a) displacement
(b) velocity
(c) acceleration
(d) speed

C

Question. 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

Question. A particle is acted upon by a force of constant magnitude which is always perpendicular to the velocity of the particle. The motion takes place in a plane. It follows that
(a) its acceleration is constant
(b) its motion is circular
(c) its velocity is constant
(d) its motion is linear

B

Question. The tangential component and centripetal component of acceleration are?
(a) Similar to each other
(b) Parallel to each other.
(c) Equal to each other.
(d) Perpendicular to each other.

D

Question. A body travels along the circumference of a circle of radius 2 m with a linear velocity of 4 m/s. Its centripetal acceleration is
(a) 8 m/s²
(b) 16 m/s²
(c) 10 m/s²
(d) 4 m/s²