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Physics Optics Test Online MCQs

Test Name	Optics MCQs Test
Subject	Physics
Test Type	MCQs
Total Question	25
Total Marks	50
Total Time	20 Mints
Test Help For	Physics Subject Test Prep. All Admissions Test. All Jobs Test prep. Engineering and B Tech Test Prep. Medical Test prep.

Physics Optics Multiple Choice Questions quiz for the visitors to prepare for the Engineering and Medical and Science Colleges and universities admission test, jobs test and Mock test. Get Physics Optics MCQs Test Online below.

Physics Optics Test Online MCQs

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Physics

1. Evidence of the wave nature of light cannot be obtained from:

Diffraction

Reflection

Doppler effect

Interference

Question 1 of 25

2. Huygen’s wave theory of light cannot explain:

Photoelectric effect

Polarization

Diffraction

Interference

Question 2 of 25

3. According to Huygen’s principle light is a form of:

Particle

None of these

Wave

Rays

Question 3 of 25

4. The height of a man is 6 m. To see his full image the size of mirror is approximately:

2.5 m

6 m

12 m

3 m

Question 4 of 25

5. Which of the following phenomena is not explained by Huygen’s construction of wavefront?

Diffraction

Reflection

Refraction

Origin of spectra

Question 5 of 25

6. A light ray is incident normally on a plane mirror. The angle of reflection will be:

0 °

45 °

90 °

135 °

Question 6 of 25

7. Newton proposed his corpuscular theory of light on the basis of:

Dispersion effect of light

Rectilinear propagation of light

Planck’s quantum theory

Refraction effect of photons

Question 7 of 25

8. Light Propagates rectilinearly because of its:

Wavelength

Frequency

Wave nature

Velocity

Question 8 of 25

9. A man moves towards a mirror with velocity 4 m/s. With what velocity its image move towards him?

8 m/s

2 m/s

16 m/s

4 m/s

Question 9 of 25

10. If an object is placed unsymmetrically between 2 plane mirrors, inclined at an angle of the 60°, then the total number of images formed is:

Infinite

Question 10 of 25

11. Light behave as:

Sometimes particle and Sometimes wave

Wave

Both wave and particle

Particle

Question 11 of 25

12. A thick mirror produces a number of images of an object. Which of the images is the brightest?

Last one

Third

Second

First

Question 12 of 25

13. A beam of light rays falls on a plane mirror and form a real image, so the incident rays are:

Parallel

Statement is false

Converging

Diverging

Question 13 of 25

14. To get three images of a single object, one should have two plane mirrors at an angle of:

60°

50°

90°

30°

Question 14 of 25

15. A man runs towards a mirror at a rate of 6 m/s. If we assume the mirror to be at rest, his image will have a velocity:

- 6 m/s

+ 6 m/s

+ 12 m/s

- 12 m/s

Question 15 of 25

16. Two mirrors are kept at 60° to each other and a body is placed at middle. The total number of images formed is:

Four

Six

Three

Five

Question 16 of 25

17. A clock shows hours with the help of numbers. If it shows 8-20 in the mirror placed in front of it, then the real time is:

3 – 40

4 – 40

4 – 10

4 – 20

Question 17 of 25

18. A tall man of height 6 feet, want to see his full image. The required minimum length of the mirror will be:

12 feet

Any length

3 feet

6 feet

Question 18 of 25

19. A plane mirror produces a magnification of:

- 1

Zero

+ 1

Between 0 and + ∞

Question 19 of 25

20. Ray optics is valid when the characteristics dimensions are:

Of same order as wavelength of light

Of the order of one millimeter

Much larger than wavelength of light

Much smaller than wavelength of light

Question 20 of 25

21. How many images will be formed if two mirrors are fitted on adjacent walls and one mirror on ceiling?

Question 21 of 25

22. A man runs towards mirror with a speed of 5 m/s. What is the speed of his image?

20 m/s

15 m/s

5 m/s

10 m/s

Question 22 of 25

23. Frequency of visible light is of the order of:

105 Hz

1012 Hz

108 Hz

1015 Hz

Question 23 of 25

24. The rectilinear propagation of light in a medium is due to:

Its short wavelength

Its high frequency

Its high velocity

The refractive index of medium

Question 24 of 25

25. The theory associated with secondary wavelets is:

None of these

Huygen’s wave theory

Special theory of relativity

Doppler’s effect

Question 25 of 25

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2021-01-16

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Physics Optics Test Online MCQs

Physics Optics Test Online MCQs

Physics

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