Uniform Circular Motion in Hindi

Uniform Circular motion in Hindi. We covered all the Uniform Circular motion in Hindi in this post for free so that you can practice well for the exam.

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Mock test on Uniform Circular motion for Students

Uniform Circular motion (UCM) Concepts. UCM is a type of motion in which:

(A) Speed remains constant with zero acceleration

(B) Velocity remains constant with zero acceleration

(C) Speed remains constant with continuous acceleration

(D) Speed varies with constant acceleration

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The torque produced by centripetal force about the axis of rotation in UCM is:

(A) Zero

(B) f × r

(C) r × f

(D) Finite

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If the Earth revolves around the Sun in a circular orbit at a constant speed of 30 km/s:

(A) Average velocity of the Earth from 1 Jan to 30 June is zero

(B) Average acceleration from 1 Jan to 30 June is 60 km/s²

(C) Average speed of the Earth from 30 June to 31 Dec is zero

(D) Instantaneous acceleration of the Earth is directed towards the Sun

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An airplane travels along a circular path with uniform speed of 300 km/hr. The magnitude of velocity change after half a revolution is:

(A) Zero

(B) 150 km/hr

(C) 600 km/hr

(D) 900 km/hr

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A sphere of Mass 100 g is attached to a string of length 1.3 m, fixed at the ceiling, and describes a horizontal circle of radius 50 cm. The time period of one revolution is:

(A) 5.05 s

(B) 4.55 s

(C) 3.25 s

(D) 2.19 s

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A stone is rotated in a horizontal circle of radius 1 m with period T. If the tension in the string is kept constant and the radius is increased by 1%, the percentage change in the time period is:

(A) 1%

(B) 0.5%

(C) 2%

(D) 0.25%

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In uniform circular motion:

(A) Both velocity and acceleration remain constant

(B) Acceleration and speed are constant, but velocity changes

(C) Both acceleration and velocity vary

(D) Both decrease while speed remains constant

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In UCM, which quantity does not remain constant?

(A) Speed

(B) Kinetic energy

(C) Angular momentum

(D) Velocity

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For a particle tied to a string and moving in a horizontal circle under UCM, the tension in the string is:

(A) Constant at all points

(B) Varies from point to point

(C) Maximum at one point and minimum at the diametrically opposite point

(D) Maximum at points perpendicular to each other

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A water-filled can is revolved in a vertical circle of radius 4 m. If the water just stays in the can at the top, the time period of revolution (g = 9.8 m/s²) is:

(A) 1 s

(B) 2 s

(C) 4 s

(D) 8 s

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We covered all the uniform circular motion in Hindi above in this post for free so that you can practice well for the exam.

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• Modern Physics Class 12 MCQ
• MCQs on Modern Physics
• Modern Physics MCQ for NEET