Test : Physics - 3 - NDA MCQ

# Test : Physics - 3 - NDA MCQ

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## 20 Questions MCQ Test NDA (National Defence Academy) Mock Test Series 2024 - Test : Physics - 3

Test : Physics - 3 for NDA 2024 is part of NDA (National Defence Academy) Mock Test Series 2024 preparation. The Test : Physics - 3 questions and answers have been prepared according to the NDA exam syllabus.The Test : Physics - 3 MCQs are made for NDA 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test : Physics - 3 below.
Solutions of Test : Physics - 3 questions in English are available as part of our NDA (National Defence Academy) Mock Test Series 2024 for NDA & Test : Physics - 3 solutions in Hindi for NDA (National Defence Academy) Mock Test Series 2024 course. Download more important topics, notes, lectures and mock test series for NDA Exam by signing up for free. Attempt Test : Physics - 3 | 20 questions in 25 minutes | Mock test for NDA preparation | Free important questions MCQ to study NDA (National Defence Academy) Mock Test Series 2024 for NDA Exam | Download free PDF with solutions
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Test : Physics - 3 - Question 1

### When a wave goes from one level to another, there is a change in the (i) Velocity (ii) Amplitude (iii) Frequency (iv) Wavelength Choose the correct answer

Test : Physics - 3 - Question 2

### Doppler shift in frequency does not depend upon

Detailed Solution for Test : Physics - 3 - Question 2

Test : Physics - 3 - Question 3

### Consider the following statements: Assertion (A): The velocity of sound in air increases due to the presence of moisture in itReason (R): The presence of moisture in air lowers the density of air of these statements

Test : Physics - 3 - Question 4

The velocity of sound is generally greater in solids than in gases because

Test : Physics - 3 - Question 5

The Doppler’s effect is applicable for

Test : Physics - 3 - Question 6

If a sound travels from air to water, the quantity that remain unchanged is

Test : Physics - 3 - Question 7

A gas is a metallic cylinder is suddenly compressed by a piston which is maintained at the same position with the passage of time the pressure of air

Test : Physics - 3 - Question 8

A gas has

Test : Physics - 3 - Question 9

Melting point of ice

Test : Physics - 3 - Question 10

A person standing in front of a mirror finds his image thinner but with normal height .This implies that the mirror is

Test : Physics - 3 - Question 11

Which one of the following phenomena cannot be attributed to the refraction of light?

Test : Physics - 3 - Question 12

To an observer on the lunar surface, during the day time the sky will appear to be

Test : Physics - 3 - Question 13

Sound waves cannot be polarized because they

Test : Physics - 3 - Question 14

When a stone is dropped on the surface of still water, the waves produced are

Test : Physics - 3 - Question 15

There is no net transfer of energy by the particles of the medium in

Test : Physics - 3 - Question 16

Which one of the following does TV remote control unit use to operate a TV set?

Test : Physics - 3 - Question 17

Which of the following types is used by computed tomography employed for visualisation of the internal structure of human body?

Test : Physics - 3 - Question 18

When light waves pass from air to glass, the variables affected are

Test : Physics - 3 - Question 19

Consider the following statements(i) Light of longer wavelength is scattered much more than the light of shorter wavelength(ii) The speed of visible light in water is 0.95 times the speed in vacuum(iii) Radio waves are produced by rapidly oscillating electrical currents(iv) To detect the over speeding vehicles, police use the Doppler effect of reflected short radio wavesWhich of these statements are correct?

Test : Physics - 3 - Question 20

Who invented the Centigrade scale?

Detailed Solution for Test : Physics - 3 - Question 20

In 1742, Swedish astronomer, Anders Celsius invented the Celsius(Centigrade) temperature scale, which was named after the inventor.

## NDA (National Defence Academy) Mock Test Series 2024

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## NDA (National Defence Academy) Mock Test Series 2024

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