Systems of Particles and Rotational Motion Test

Result

Systems of Particles and Rotational Motion Test - 17

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Weekly Quiz Competition

Question 1
4 / -1

Moment of inertia of a rod of mass M and length L about an axis passing through a point midway between centre and end is

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B

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D

Solution
Question 2
4 / -1

From a disc of radius R, a concentric circular portion of radius r is cut out so as to leave an annular disc of mass M. The moment of inertia of this annular disc about the axis perpendicular to its plane and passing through its centre of gravity is

A

B

C

D

Solution
Question 3
4 / -1

The ratio of the radii of gyration of a circular disc about a tangential axis in the plane of the disc and of a circular ring of the same radius about a tangential axis in the plane of the ring is

A

B

C

D

Solution
Question 4
4 / -1

The moment of inertia of a solid sphere of mass M and radius R about the tangent on its surface is

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B

C

D

Solution
Question 5
4 / -1

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Solution
Question 6
4 / -1

For the given uniform square lamina ABCD, whose centre is O

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D

Solution
Question 7
4 / -1

The moment of inertia of a uniform circular disc of radius R and mass M about an axis touching the disc at its diameter and normal to the disc is

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B

C

D

Solution
Question 8
4 / -1

Two solid spheres (A and B) are made of metals of different densities ρ_A and ρ_B respectively. If their masses are equal, the ratio of their moments of inertia (I_B / I_B ) about their respective diameters is

A

B

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D

Solution
Question 9
4 / -1

A solid sphere of radius R has moment of inertia I about its geometrical axis. If it is melted into a disc of radius r and thickness t. If its moment of inertia about the tangential axis (which is perpendicular to plane of the disc), is also equal to I, then the value of r is equal to

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D

Solution
Question 10
4 / -1

Four point masses, each of value m, are placed at the corners of a square ABCD of side l. The moment of inertia of this system about an axis passing through A and parallel to BD is

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B

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D

Solution