1
MHT CET 2024 11th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

Four thin metal rods each of mass ' $M$ ' and length ' $L$ ', are welded end to end to form a square. The moment of inertia of the system about an axis passing through the centre of the square and perpendicular to its plane is

A
$\frac{\mathrm{ML}^2}{3}$
B
$\frac{2 \mathrm{ML}^2}{3}$
C
$\frac{2 \mathrm{ML}^2}{9}$
D
$\frac{4 \mathrm{ML}^2}{3}$
2
MHT CET 2024 11th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

Moment of inertia of a disc about an axis passing through its centre and perpendicular to its plane is 'I'. The ratio of moment of inertia about a parallel axis tangential to its rim to passing through a point midway between the centre and the rim is

A
$2: 1$
B
$3: 1$
C
$4:1$
D
$6: 1$
3
MHT CET 2024 11th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

An inclined plane makes an angle $30^{\circ}$ with horizontal. A solid sphere rolls down from the top of the inclined plane from rest without slipping has a linear acceleration along the plane equal to (where $g$ is acceleration due to gravity) (given $\sin 30^{\circ}=0.5$)

A
$\frac{5 \mathrm{g}}{14}$
B
$\frac{5 g}{4}$
C
$\frac{2 \mathrm{g}}{3}$
D
$\frac{\mathrm{g}}{3}$
4
MHT CET 2024 10th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

Two bodies A and B have their moments of inertia $I_1$ and $I_2$ respectively about their axis of rotation. If their kinetic energies of rotation are equal and their angular momenta $\mathrm{L}_1$ and $\mathrm{L}_2$ respectively are in the ratio $1: \sqrt{3}$, then $I_2$ will be

A
$\frac{1}{3} \mathrm{I}_1$
B
$\sqrt{3} I_1$
C
$2 \mathrm{I}_1$
D
$\mathrm{3 I_1}$
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