1
MHT CET 2023 9th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

Two discs of same mass and same thickness (t) are made from two different materials of densities '$$d_1$$' and '$$d_2$$' respectively. The ratio of the moment of inertia $$I_1$$ to $$I_2$$ of two discs about an axis passing through the centre and perpendicular to the plane of disc is

A
$$\mathrm{d}_1: \mathrm{d}_2$$
B
$$\mathrm{d}_2: \mathrm{d}_1$$
C
$$1: d_1 d_2$$
D
$$1: \mathrm{d}_1^2 \mathrm{~d}_2$$
2
MHT CET 2021 21th September Evening Shift
MCQ (Single Correct Answer)
+1
-0

A particle performs rotational motion with an angular momentum 'L'. If frequency of rotation is doubled and its kinetic energy becomes one fourth, the angular momentum becomes.

A
L
B
$$\mathrm{\frac{L}{4}}$$
C
$$\mathrm{\frac{L}{8}}$$
D
$$\mathrm{\frac{L}{2}}$$
3
MHT CET 2021 21th September Evening Shift
MCQ (Single Correct Answer)
+1
-0

MHT CET 2021 21th September Evening Shift Physics - Rotational Motion Question 11 English

Three rings each of mass 'M' and radius 'R' are arranged as shown in the figure. The moment of inertia of system about axis YY' will be

A
5 MR$$^2$$
B
$$\frac{7}{2}$$ MR$$^2$$
C
$$\frac{3}{2}$$ MR$$^2$$
D
3 MR$$^2$$
4
MHT CET 2021 21th September Morning Shift
MCQ (Single Correct Answer)
+1
-0

The moment of inertia of a circular disc of radius $$2 \mathrm{~m}$$ and mass $$1 \mathrm{~kg}$$ about an axis XY passing through its centre of mass and perpendicular to the plane of the disc is $$2 \mathrm{~kg} \mathrm{~m}^2$$. The moment of inertia about an axis parallel to the axis $$\mathrm{XY}$$ and passing through the edge of the disc is

A
$$6 \mathrm{~kg} \mathrm{~m}^2$$
B
$$4 \mathrm{~kg} \mathrm{~m}^2$$
C
$$10 \mathrm{~kg} \mathrm{~m}^2$$
D
$$8 \mathrm{~kg} \mathrm{~m}^2$$
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