Wave Optics-1
Class 12 Physics Science

MCQ Questions Class 12 Wave Optics With Answers

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CBSE Class 12 Wave Optics Multiple Choice Questions with Answers. MCQ Questions Class 12 Wave Optics with Answers Is Prepared Based on Latest Exam Pattern. Students can solve NCERT Class 12 Wave Optics MCQs with Answers to know their preparation level.

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Students who are searching for NCERT MCQ Questions for Class 12 Wave Optics with Answers are compiled here to get good practice on all fundamentals. Know your preparation level on MCQ Questions for Class 12 Wave Optics with Answers. You can also verify your answers from our provided MCQ Class 12 Wave Optics with Answers. So, ace up your preparation with MCQ of Class 12 Physics Examinations.

MCQ Questions Class 12 Wave Optics with Answers - Set - 1

Question 1: 

Young’s experiment established that:
(a) light consists of waves.
(b) light consists of particles.
(c) light consists of both waves and particles.
(d) none of these

Correct Answer – (A)

Question 2 : 

Light travels through a glass plate of thickness t and having a refractive index µ. If c be the velocity of light in vaccum, the time taken by light to travel this thickness of glass is
(a) (t/c)µ
(b) (t/µc)
(c) (t/µ)c
(d) tµc

Correct Answer – (A)

Question 3 : 

If a source of light is moved away from a stationary observer, then the frequency of light wave appears to change because of:
(a) interference
(b) diffraction.
(c) Doppler’s effect
(d) All of these

Correct Answer – (C)

Question 4 : 

Ray optics is valid when the characteristic dimensions are
(a) of the order of 1 mm.
(b) of the same order as the wavelength of light.
(c) much smaller than the wavelength of light.
(d) much larger than the wavelength of light.

Correct Answer – (D)

Question 5 : 

Huygen’s wave theory of light can not explain
(a) Photoelectric effect
(b) interference
(c) diffraction
(d) polarisation

Correct Answer – (A)

MCQ Questions Class 12 Wave Optics with Answers

Question 6 : 

In Young’s Double Slit experiment using sodium light (λ = 5898 Å), 92 fringes are seen. If green colour (5461 Å) is used, how many fringes will be seen?
(a) 62
(b) 99
(c) 67
(d) 85

Correct Answer – (B)

Question 7 : 

When seen in green light, the saffron and green portions of our. National Flag will appear.
(a) green
(b) black
(c) black and green respectively.
(d) green and yellow respectively.

Correct Answer – (C)

Question 8 : 

Interference pattern is obtained on a screen due to two identical coherent sources of monochromatic light. The intensity of the central bright fringe is 1. When one of the sources is blocked, its intensity becomes I0. The intensity in two situations is related as:
(a) I = 2I0
(b) I = I0
(c) I = 4I0
(d) I = 3I0

Correct Answer – (C)

Question 9 : 

Wave optics is valid when characteristic dimensions are
(a) of the order of 1 mm.
(b) of the same order as the wavelength of light.
(c) much smaller than the wavelength of light
(d) much larger than the wave length of light.

Correct Answer – (B)

Question 10 : 

Interference was first observed in the interference chamber, when air was present, now the chamber is evacuated, and if the same light is used then a careful observer will see:
(a) no interference
(b) interference in which breadth of the fringe will be slightly increased.
(c) interference with bright bands.
(d) interference with dark bands.

Correct Answer – (B)
MCQ Questions Class 12 Wave Optics with Answers
Set 1
Set 2
Set 3
Set 4
Set 5

NCERT Solutions & Download NCERT Textbooks

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Set 1
Set 2
Set 3
Set 4
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