WB JEE 2026 | Rotational Motion Question 3 | Physics

WB JEE 2026

MCQ (More than One Correct Answer)

-0

The moment of inertia of a thin disc about axes $a, b, c, d$ are $\mathbf{I}_1, \mathbf{I}_2, \mathbf{I}_3$ and $\mathbf{I}_4$ respectively，as shown in figure．If the moment of inertia about an axis passing through the centre and perpendicular to the plane of the disc is I then，

WB JEE 2026 Physics - Rotational Motion Question 2 English

$I=I_1+I_2$

$I=I_3+I_4$

$\mathrm{I}=\mathrm{I}_1+\mathrm{I}_3$

$\mathrm{I}=\mathrm{I}_1+\mathrm{I}_2+\mathrm{I}_3+\mathrm{I}_4$

WB JEE 2020

MCQ (More than One Correct Answer)

-0

Two metallic spheres of equal outer radii are found to have same moment of inertia about their respective diameters. Then, which of the following statement(s) is/are true?

The two spheres have equal masses.

The ratio of their masses is nearly 1.67 : 1.

The spheres are made of different materials.

Their rotational kinetic energies will be equal when rotated with equal uniform angular speed about their respective diameters.

WB JEE 2020

MCQ (More than One Correct Answer)

-0

A simple pendulum of length l is displaced, so that its taught string is horizontal and then released. A uniform bar pivoted at one end is simultaneously released from its horizontal position. If their motions are synchronous, what is the length of the bar?

$${{3l} \over 2}$$

$${{2l} \over 3}$$

WB JEE Subjects

Browse all chapters by subject