Rotational Motion PYQs - Last 10 Years

MHT CET / Physics / Mechanics / 173 recent questions

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All Rotational Motion PYQs Last 5 Years Create chapter test

Practice 173 MHT CET Physics questions from Rotational Motion. Use the year-wise and type-wise breakdown to prioritize recent PYQs, then continue into the question list below.

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Last 10 Years Rotational Motion Questions

Showing 23 of 173 filtered questions.

1Rotational Motion

A disc of radius 0.4 m and mass one kg rotates about an axis passing through its centre and perpendicular to its plane. The angular acceleration of the disc is 10 rad/s\(^2\). The tangential force applied to the rim of the disc is

2Rotational Motion

Two bodies rotate with kinetic energies 'E\(_1\)' and 'E\(_2\)'. Moments of inertia about their axis of rotation are 'I\(_1\)' and 'I\(_2\)'. If \(\mathrm{I_1=\frac{I_2}{3}}\) and E\(_1\) = 27 E\(_2\), then the ratio of angular momenta 'L$$...

3Rotational Motion

A solid sphere of mass \(\mathrm{M}\), radius \(\mathrm{R}\) has moment of inertia '\(\mathrm{I}\)' about its diameter. It is recast into a disc of thickness 't' whose moment of inertia about an axis passing through its edge and perpendicul...

4Rotational Motion

The ratio of radii of gyration of a circular ring and circular disc of the same mass and radius, about an axis passing through their centres and perpendicular to their planes is

5Rotational Motion

A disc of radius 0.4 metre and mass 1 kg rotates about an axis passing through its centre and perpendicular to its plane. The angular acceleration is 10 rad s\(^{-2}\). The tangential force applied to the rim of the disc is

6Rotational Motion

A rope is wound around a solid cylinder of mass 1 kg and radius 0.4 m . What is the angular acceleration of cylinder, if the rope is pulled with a force of 25 N ? (Cylinder is rotating about its own axis.)

7Rotational Motion

Three points masses, each of mass $m$ are placed at the corners of an equilateral triangle of side $\ell$. The moment of inertia of the system about an axis passing through one of the vertices and parallel to the side joining other two vert...

8Rotational Motion

Two circular loop $A$ and $B$ of radii $R$ and $N R$ respectively are made from a uniform wire. Moment of inertia of $B$ about its axis is 3 times that of $A$ about its axis. The value of $N$ is

9Rotational Motion

A solid cylinder of radius \(r\) and mass \(M\) rolls down an inclined plane of height \(h\). When it reaches the bottom of the plane, then its rotational kinetic energy is (\(g=\) acceleration due to gravity)

10Rotational Motion

If there is a change of angular momentum from \(1 \mathrm{j}\)-\(\mathrm{s}\) to \(4 \mathrm{j}\)-\(\mathrm{s}\) in \(4 \mathrm{~s}\), then the torque

11Rotational Motion

A thin uniform rod has mass \(M\) and length \(L\) The moment of inertia about an axis perpendicular to it and passing through the point at a distance \(\frac{L}{3}\) from one of its ends, will be

12Rotational Motion

A body slides down a smooth inclined plane having angle \(\theta\) and reaches the bottom with velocity \(v\). If a body is a sphere, then its linear velocity at the bottom of the plane is

13Rotational Motion

The ratio of radii of gyration of a ring to a disc (both circular) of same radii and mass, about a tangential axis perpendicular to the plane is

14Rotational Motion

A rod $l \mathrm{~m}$ long is acted upon by a couple as shown in the figure. The moment of couple is $\tau \mathrm{~Nm}$. If the force at each end of the rod, then magnitude of each force is
$$\left(\sin 30^{\circ}=\cos 60^{\circ}=0.5\right...

15Rotational Motion

A solid sphere rolls down from top of inclined plane, 7 m high, without slipping. Its linear speed at the foot of plane is $\left(g=10 \mathrm{~m} / \mathrm{s}^2\right)$

16Rotational Motion

A thin metal wire of length 'L' and uniform linear mass density '$\rho$' is bent into a circular coil with 'O' as centre. the moment of inertia of a coil about the axis XX' is

17Rotational Motion

A uniform rod of length ' 6 L ' and mass ' 8 m ' is pivoted at its centre ' $C$ '. Two masses ' $m$ ' and ' $2 m^{\prime}$ with speed $2 v, v$ as shown strikes the rod and stick to the rod. Initially the rod is at rest. Due to impact, if it...

18Rotational Motion

The dimensions of torque are same as that of

19Rotational Motion

If radius of the solid sphere is doubled by keeping its mass constant, the ratio of their moment of inertia about any of its diameter is

20Rotational Motion

Three point masses each of mass ' $m$ ' are kept at the corners of an equilateral triangle of side. The system rotates about the center of the triangle without any change in the separation of masses during rotation. The period of rotation i...

21Rotational Motion

Three identical rods each of mass ' $M$ ' and length ' $L$ ' are joined to form a symbol ' $H$. The moment of inertia of the system about one of the sides of ' $H$ ' is

22Rotational Motion

A rigid body is rotating with angular velocity ' $\omega$ ' about an axis of rotation. Let $v$ ' be the linear velocity of particle which is at perpendicular distance ' $r$ ' from the axis of rotation. Then the relation $v=r \omega$ ' impli...

23Rotational Motion

When a 12000 joule of work is done on a flywheel, its frequency of rotation increases from 10 Hz to 20 Hz . The moment of inertia of flywheel about its axis of rotation is $\left(\pi^2=10\right)$