# NEET (NTA)-National Eligibility cum Entrance Test (Medical) Physics: Questions 1956 - 1960 of 2247

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## Question number: 1956

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MCQ▾

### Question

Two discs of same thickness but of different radii are made of two different materials such that their masses are same. The densities of the materials are in the ratio 1: 3. The ratio of the moments of inertia of these discs about the respective axes passing through their centers and perpendicular to their planes will be in,

### Choices

Choice (4) Response

a.

1: 9

b.

3: 1

c.

9: 1

d.

1: 3

## Question number: 1957

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MCQ▾

### Question

If g is the acceleration due to gravity on the earth’s surface the gain in P. E. of an object of mass m raised from the surface of the earth to a height of the radius R of the earth is -

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 1958

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MCQ▾

### Question

What is the mass of the planet that has a satellite whose time period is T and orbital radius is r?

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 1959

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MCQ▾

### Question

The speed with which the earth have to rotate on its axis so that a person on the equator would weigh the as much as present will be - (Take the equatorial radius as 6400 km. )

### Choices

Choice (4) Response

a.

b.

3 28 ⨯ 10 -3 rad/sec

c.

d.

## Question number: 1960

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MCQ▾

### Question

A long rod has a mass of 0.12 kg and length of 1 m. The moment of inertia about an axis passing through the center and perpendicular to the length of rod will be

### Choices

Choice (4) Response

a.

0.001 kg-m 2

b.

0.01 kg-m 2

c.

10 kg-m 2

d.

1 kg-m 2

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