NEET Physics: Questions 1920 - 1923 of 2099

Get 1 year subscription: Access detailed explanations (illustrated with images and videos) to 2099 questions. Access all new questions we will add tracking exam-pattern and syllabus changes. View Sample Explanation or View Features.

Rs. 550.00 or

Question number: 1920

» 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 = 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: 1921

» Experimental Skills » Galvanometer

MCQ▾

Question

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

Choices

Choice (4) Response
a.

6.5Arad

b.

7.5Arad

c.

7.6Arad

d.

8.0Arad

Question number: 1922

» Experimental Skills » Focal Length

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: 1923

» Experimental Skills » Potentiometer

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.

Reducing the potential gradient.

c.

Increasing the sensitivity of the galvanometer.

d.

Increasing the current through the potentiometer

Sign In