Rotational Motion PYQs - Last 5 Years

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All Rotational Motion PYQs Last 10 Years Create chapter test

Practice 17 NEET 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 5 Years Rotational Motion Questions

Showing 17 of 17 filtered questions.

1Rotational Motion

A solid sphere $A$ of radius $R$ and mass $M$ is attached at a point to a smaller solid sphere $B$ of radius $r

2Rotational Motion

A thin horizontal disc is rotating about a vertical axis passing through its fixed centre $O$. Its angular momentum is $L_A$ and $L_B$ computed about points $A$ and $B$, respectively, with $O B=2 \times O A$. The value of $\frac{L_A}{L_B}$ ...

3Rotational Motion

A thin wire of length ' $L$ ' and linear mass density ' $m$ ' is bent into a circular ring (in $x-y$ plane) with centre ' $C$ ' as shown in figure. The moment of inertia of the ring about an axis $y y^{\prime}$ will be:

4Rotational Motion

The angular speed of a flywheel is increased from 600 rpm to 1200 rpm in 10 s . The number of revolutions completed by the flywheel during this time is:

5Rotational Motion

A sphere of radius $R$ is cut from a larger solid sphere of radius $2 R$ as shown in the figure. The ratio of the moment of inertia of the smaller sphere to that of the rest part of the sphere about the $Y$-axis is:

6Rotational Motion

A uniform rod of mass 20 kg and length 5 m leans against a smooth vertical wall making an angle of $60^{\circ}$ with it. The other end rests on a rough horizontal floor. The friction force that the floor exerts on the rod is (Take $g=10 \ma...

7Rotational Motion

The Sun rotates around its centre once in 27 days. What will be the period of revolution if the Sun were to expand to twice its present radius without any external influence? Assume the Sun to be a sphere of uniform density.

8Rotational Motion

The radius of gyration of a solid sphere of mass \(5 \mathrm{~kg}\) about \(X Y\) is \(5 \mathrm{~m}\) as shown in figure. The radius of the sphere is \(\frac{5 x}{\sqrt{7}} \mathrm{~m}\), then the value of $x$ is:

9Rotational Motion

A wheel of a bullock cart is rolling on a level road as shown in the figure below. If its linear speed is \(v\) in the direction shown, which one of the following options is correct (\(P\) and \(Q\) are any highest and lowest points on the ...

10Rotational Motion

A bob is whirled in a horizontal plane by means of a string with an initial speed of \(\omega \mathrm{~rpm}\). The tension in the string is \(T\). If speed becomes \(2 \omega\) while keeping the same radius, the tension in the string become...

11Rotational Motion

The moment of inertia of a thin rod about an axis passing through its mid point and perpendicular to the rod is \(2400 \mathrm{~g} \mathrm{~cm}^2\). The length of the \(400 \mathrm{~g}\) rod is nearly:

12Rotational Motion

A constant torque of \(100 \mathrm{~N} \mathrm{~m}\) turns a wheel of moment of inertia \(300 \mathrm{~kg} \mathrm{~m}^2\) about an axis passing through its centre. Starting from rest, its angular velocity after \(3 \mathrm{~s}\) is :-

13Rotational Motion

The angular acceleration of a body, moving along the circumference of a circle, is :

14Rotational Motion

The ratio of radius of gyration of a solid sphere of mass \(M\) and radius \(R\) about its own axis to the radius of gyration of the thin hollow sphere of same mass and radius about its axis is :-

15Rotational Motion

An energy of 484 J is spent in increasing the speed of a flywheel from 60 rpm to 360 rpm. The moment of inertia of the flywheel is :

16Rotational Motion

The ratio of the radius of gyration of a thin uniform disc about an axis passing through its centre and normal to its plane to the radius of gyration of the disc about its diameter is

17Rotational Motion

The angular speed of a fly wheel moving with uniform angular acceleration changes from 1200 rpm to 3120 rpm in 16 seconds. The angular acceleration in rad/s2 is