# NEET Physics: Questions 1926 - 1931 of 2142

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## Question number: 1926

MCQ▾

### Question

In an amplitude modulated wave for audio frequency of 1000 cycle/second, the appropriate carrier frequency will be,

### Choices

Choice (4) Response

a.

100 cycles/sec

b.

10 cycles/sec

c.

1000 cycles/sec

d.

10000 cycles/sec

## Question number: 1927

MCQ▾

### Question

An observer is moving away from source of sound of frequency 100 Hz. His speed is 33 m/s. If speed of sound is 330 m/s, then the observed frequency is

### Choices

Choice (4) Response

a.

90 Hz

b.

91 Hz

c.

100 Hz

d.

110 Hz

## Question number: 1928

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: 1929

MCQ▾

### Question

A whistle giving out 450 Hz approaches a stationary observer at a speed of 33 m/s. The frequency heard by the observer in Hz is

### Choices

Choice (4) Response

a.

409

b.

517

c.

429

d.

500

## Question number: 1930

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: 1931

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