# NEET (National Eligibility cum Medical Entrance Test) Physics: Questions 1919 - 1922 of 2142

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## Question number: 1919

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 = 8.30 ⨯ 10 -5 rad/sec)

### Choices

Choice (4) Response

a.

2.66 ⨯ 10 3 m.

b.

2.44 ⨯ 10 7 m.

c.

2.66 ⨯ 10 5 m.

d.

2.66 ⨯ 10 7 m.

## Question number: 1920

MCQ▾

### Question

A current of 4A produces a deflection of 30° in the galvanometer. The figure of merit is

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 1921

MCQ▾

### Question

In an experiment to measure the focal length of a concave mirror, it was found that for an object distance of 0.45 m, the image distance come out to be 0.90 m. Determine the focal length.

### Choices

Choice (4) Response

a.

(0.2 ± 0.02) m

b.

(0.1 ± 0.02) m

c.

(0.3 ± 0.01) m

d.

(0.3 ± 0.02) m

## Question number: 1922

MCQ▾

### Question

Which of the following operations will not increase the sensitivity of a potentiometer?

### Choices

Choice (4) Response

a.

Increase in the number of wires of the potentiometer.

b.