# Gravitation (NEET (NTA)-National Eligibility cum Entrance Test (Medical) Physics): Questions 37 - 40 of 84

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## Question number: 37

» Gravitation » Universal Law of Gravitation

MCQ▾

### Question

An artificial satellite of the earth is to be established in the equatorial plane of the earth and to an observer at the equator it is required that the satellite will move eastward, completing one round trip per day. The distance of the satellite from the center of the earth will be- (The mass of the earth is 6.00 ⨯ 10 24 kg and its angular velocity = 7.30 ⨯ 10 -5 rad/sec)

### Choices

Choice (4) Response

a.

2.66 ⨯ 10 7 m.

b.

2.66 ⨯ 10 6 m.

c.

2.66 ⨯ 10 3 m.

d.

2.66 ⨯ 10 5 m.

## Question number: 38

» Gravitation » Universal Law of Gravitation

MCQ▾

### Question

Gravitational mass is proportional to,

### Choices

Choice (4) Response

a.

Gravitational field

b.

Gravitational force

c.

Gravitational intensity

d.

Question does not provide sufficient data or is vague

## Question number: 39

» Gravitation » Geo-Stationary Satellites

MCQ▾

### Question

If the moon revolves round the earth 10 times in one year. If the ratio of sun-earth distance to earth-moon distance is 393, then the ratio of masses of sun and earth will be –

### Choices

Choice (4) Response

a.

6.07 ⨯ 10 5

b.

4.56 ⨯ 10 5

c.

1

d.

5.93 ⨯ 10 5

## Question number: 40

» Gravitation » Gravitational Potential

MCQ▾

### Question

Two satellites S 1 and S 2 revolve round a planet in the same direction in circular orbits. Their periods of revolutions are 1 hour and 8 hour respectively. The radius of S 1 is 10 4 km. The velocity of S 2 with respect to S 1 will be

### Choices

Choice (4) Response

a.

b.

c.

d.

f Page