Lecturer Physics Test 24 Online Preparation MCQs Past Papers

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There will be 25 multiple choice question in the test.
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Test Instructions:-
Test Name Lecturer Physics 
Subject Physics Test 24
Test Type MCQs
Total Questions 25
Total Time 20 Minutes
Total Marks 100
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You have 20 minutes to pass to the quiz.


PPSC Lecturer of Physics Practice Test 24

1 / 25

The dispersive power of a grating is:

2 / 25

Which term is used for the emission of visible light from a hot body due to its temperature?

3 / 25

What is the emission of light by a substance that has observed light or others electromagnetic radiation of a different wavelength?

4 / 25

Light waves can be polarised because they:

5 / 25

Light waves can be polarised because they:

6 / 25

Rising and setting sun appears to be reddish due to:

7 / 25

The vibrations of an unpolarised light can take place:

8 / 25

Candela per square meter (cd/m2) is the SI unit for

9 / 25

Which term best describes the nature of light from modern viewpoint?

10 / 25

A plane of polarisation is one in which:

11 / 25

What is the SI unit of irradiance or radiant emittance or radiant existence?

12 / 25

What was confirmed by the discovery of polarisation of light?

13 / 25

Irradiance due to solar radiation is also called:

14 / 25

Light produced by a single Nicole is:

15 / 25

What is the radiometry term for the power of electromagnetic radiation per unit area at a surface?

16 / 25

What is the SI unit of spectral irradiance?

17 / 25

Which of the following device produces plane polarised light?

18 / 25

In a diffraction pattern, the width of any fringe is:

19 / 25

With which phenomenon, the Compton effect deals?

20 / 25

photometry what is the total luminous flux incident on the surface, per unit area?

21 / 25

With which factor, dispersive power of a grating increases?

22 / 25

Fresnel diffraction is:

23 / 25

The spectrum obtained with a grating is called:

24 / 25

In optics, which subfield studies the measurement of electromagnetic radiation, including visible light?

25 / 25

What is the photometric measure of luminous intensity per unit area of light travelling in a given direction?

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