NEET (NTA)-National Eligibility cum Entrance Test (Medical) Physics: Questions 1821 - 1824 of 2184

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Question number: 1821

» Gravitation » Gravitational Acceleration

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MCQ▾

Question

At what height above the surface of the earth is the acceleration due to gravity 6 % of its value at the surface? (Take R to be earth radius)

Choices

Choice (4) Response

a.

R

b.

4R

c.

d.

8R

Question number: 1822

» Experimental Skills » Ohm's Law

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MCQ▾

Question

In making an Ohm’s law circuit, which of the following connection is correct?

Choices

Choice (4) Response

a.

Voltmeter and ammeter both are in series

b.

Voltmeter and ammeter both are in parallel

c.

Voltmeter in series and ammeter in parallel

d.

Voltmeter in parallel and ammeter in series

Question number: 1823

» Oscillations and Waves » Doppler Effect in Sound

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MCQ▾

Question

A source of sound and a listener are moving towards each other with a speed of the speed of sound. If the frequency of the note emitted by the source is f, the frequency of the note heard by the listener will be nearly:

Choices

Choice (4) Response

a.

2.20 f

b.

1.18 f

c.

1.20 f

d.

2.0 f

Question number: 1824

» Gravitation » Gravitational Acceleration

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MCQ▾

Question

Select the wrong statements from the following

(1) The orbital velocity of a satellite increases with the radius of the orbit

(2) Escape velocity of a particle from the surface of the earth depends on the speed with which it is fired

(3) The time period of a satellite does not depend on the radius of the orbit

(4) The orbital velocity is inversely proportional to the square root of the radius of the orbit

Select the correct answers with mark it according to the following codes:

Choices

Choice (4) Response

a.

1 and 2 are correct

b.

1.2 and 3 are correct

c.

1 and 4 are correct

d.

1 and 3 are correct