MHT CET 2026 18th April Morning Shift | Rotational Motion Question 13 | Physics

The radius of gyration K of a hollow sphere of mass M and radius R about an axis XY is equal to R as shown in figure. The distance of that axis from the center of the sphere is h. The value of h is
MHT CET 2026 18th April Morning Shift Physics - Rotational Motion Question 22 English

MHT CET 2026 18th April Morning Shift Physics - Rotational Motion Question 22 English

$\dfrac{R}{\sqrt{3}}$

$\dfrac{R}{2}$

$\dfrac{R}{\sqrt{2}}$

$\dfrac{2R}{\sqrt{3}}$

MHT CET 2026 17th April Evening Shift

MCQ (Single Correct Answer)

-0

Radius of gyration of a thin uniform circular disc about the axis passing through its centre and perpendicular to its plane is $K_c$. Radius of gyration of the same disc about a diamter of the disc is $K_d$. the ratio $K_d : K_c$ is

$1 : 4$

$1 : \sqrt{2}$

$\sqrt{2} : 1$

$2 : 1$

MHT CET 2026 17th April Evening Shift

MCQ (Single Correct Answer)

-0

A solid sphere of radius R and mass M is rotating about its diameter. The moment of intertia of the solid sphere rotating about an axis at a distance $\dfrac{R}{3}$ from the centre and parallel to that diameter is

$\dfrac{11}{15}MR^2$

$\dfrac{13}{20}MR^2$

$\dfrac{23}{45}MR^2$

$\dfrac{47}{45}MR^2$

MHT CET 2026 17th April Evening Shift

MCQ (Single Correct Answer)

-0

A mass tied to a string is whirled in a horizontal circular path with a constant angular velocity and its angular momentum is 'L'. If the length of the string is now halved, keeping angular velocity same then the angular momentum will be

$\dfrac{L}{4}$

$\dfrac{L}{2}$

$L$

$2L$

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