PPSC Lecturer of Physics Online Test 42 Past Papers

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There will be 25 multiple choice question in the test.
Answer of the questions will change randomly each time you start this test.
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Test Instructions:-
Test Name Lecturer Physics 
Subject Physics Test 42
Test Type MCQs
Total Questions 25
Total Time 20 Minutes
Total Marks 100
0%

You have 20 minutes to pass to the quiz.


PPSC Lecturer of Physics Test 42

1 / 25

Which analysis is employed to convert a complex sound into notes?

2 / 25

When the source and observer are moving away from each other the apparent pitch will:

3 / 25

When two identical (progressive) waves are super-imposed, the velocity of resultant wave:

4 / 25

What is a sequence of musical notes in ascending and descending order that provides material for representing musical work?

5 / 25

The velocity of sound in water is ................ than that of air:

6 / 25

When wind blows in the same direction in which the sound travels, the sound velocity:

7 / 25

Which property of sound is not affected by change in air temperature?

8 / 25

Which effect explains the frequency shift that occurs when there is motion of sound, a listener or both relative to the medium?

9 / 25

When the prong of a tuning fork is loaded with waxe, its frequency:

10 / 25

For how long the sensation of sound persists in our brain?

11 / 25

As a man moves away form a steady source of sound at constant speed, the sound he hears will:

12 / 25

Due to which reason, echoes arise?

13 / 25

To what forms of waves the phenomenon of interference applies?

14 / 25

Who developed gramophone is 1877?

15 / 25

Which of the following is a mechanical wave?

16 / 25

Which two-pronged metal device when struck, produces a sound of constant pitch?

17 / 25

Besides sound, Doppler effect occurs for:

18 / 25

What is the linear succession of musical tones that is perceived as a ring entity?

19 / 25

Which of the following properties of sound is affected by change in air temperature?

20 / 25

On which parameter, the path difference between two interfering waves depend upon?

21 / 25

Which of the following is a conicalbore transposing musical instrument that is a member of the wood-wind family?

22 / 25

Which of the following represents an elastic wave?

23 / 25

Which law states that a musical sound is perceived by the ear as a set of a number of constituent pure harmonic tones?

24 / 25

What is a sound recording device used for recording speech for later playback or to be typed into print?

25 / 25

The beat frequency is the ................... of the two frequencies:

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