NEET (NTA)-National Eligibility cum Entrance Test (Medical) Physics: Questions 1980 - 1983 of 2184

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Question number: 1980

» Rotational Motion » Moment of Inertia

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MCQ▾

Question

Moment of inertia depends on,

(1) Distribution of particles

(2) Mass

(3) Radius of gyration

(4) Medium

Select the correct answers and mark it according to the following codes:

Choices

Choice (4) Response

a.

1 and 2 are correct

b.

1 and 3 are correct

c.

2 and 4 are correct

d.

1,2 and 3 are correct

Question number: 1981

» Rotational Motion » Moment of Inertia

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Assertion-Reason▾

Question

Assertion (Ꭺ)

Radius of gyration of a body is a constant quantity.

Reason (Ꭱ)

The radius of gyration of a body about an axis of rotation may be defined as the root mean square distance of the particles of the body from the axis of rotation.

Choices

Choice (4) Response

a.

Both Ꭺ and Ꭱ are true but Ꭱ is NOT the correct explanation of Ꭺ

b.

Ꭺ is true but Ꭱ is false

c.

Both Ꭺ and Ꭱ are false

d.

Ꭺ is false but Ꭱ is true

Question number: 1982

» Gravitation » Universal Law of Gravitation

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MCQ▾

Question

A particle is suspended from a spring and it stretches the spring by 3 cm on the surface of earth. The same particle will stretches the same spring at a place 500 km above earth surface by -

Choices

Choice (4) Response

a.

b.

1.25 cm

c.

2.58 cm

d.

2.59 cm

Question number: 1983

» Gravitation » Gravitational Acceleration

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MCQ▾

Question

What will be the acceleration due to gravity on the surface of the moon if its radius is the radius of the earth and its mass is the mass of the earth?

Choices

Choice (4) Response

a.

b.

c.

d.