# Rotational Motion (BITSAT Physics): Questions 1 - 4 of 6

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## Question number: 1

» Rotational Motion » Radius of Gyration

MCQ▾

### Question

The radius of gyration of a disc of mass and radius about an axis passing through its centre of gravity and perpendicular to the plane is –

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Choice (4) Response

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d.

## Question number: 2

» Rotational Motion » Moment of Inertia

MCQ▾

### Question

A cylinder of and radius has moment of inertia is (about its natural axis) –

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Choice (4) Response

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d.

## Question number: 3

» Rotational Motion » Angular Momentum

MCQ▾

### Question

A satellite of mass is circulating around the earth with constant angular velocity. If the radius of the orbit is and mass of the earth is The angular momentum about the centre of the earth is –

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Choice (4) Response

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d.

## Question number: 4

» Rotational Motion » Torque

MCQ▾

### Question

The earth of mass revolves around the sun with an angular velocity of . In a circular orbit radius . The force exerted by the sun, on the earth is

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Choice (4) Response

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c.

d.

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