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

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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