MDCAT Physics Chapter 7 MCQ Test With Answer for (Light )

Many students feel anxious about how to prepare for the exam during the MDCAT preparation effectively. Solving MCQs is considered one of the best ways to analyze your preparation level before the commencement of the test. The students preparing for the MDCAT are informed that they can get the MCQs of chapter 7 of physics from this platform.

MCQ's Test For MDCAT Physics Chapter 7 Light Online Test

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MDCAT Physics Chapter 7 Light Online Test

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Question # 1

The path difference and phase difference are related to each other as

Question # 2

The velocity of light in vacuum can be changed by changing:

Question # 3

Multimode step index fibre is useful for

Question # 4

Which of the following is the most common method to obtain polarized light?

Question # 5

The diffraction of light occurs, due to interference, of

Question # 6

Sunset makes sky appears reddish because of:

Question # 7

A simple telescope is consists of

Question # 8

The light source in the transmitter can be

Question # 9

One cannot see through fog because

Question # 10

Identify the incorrect statement

Question # 11

Light of wavelength 800 n m is incident on a pair of slits, forming fringes 4.0 mm apart on a screen. What is the fringe when light of 400 nm is used and the slit separation is halved?

Question # 12

In Young's double slit experiment,the separation between the slits is made 3 fold the fringe width becomes

Question # 13

In case of YDS experiment, the distance of the mth bright fringe on the screen from center is

Question # 14

The distance between the centres of two consecutive bright fringes (or dark fringes) is called

Question # 15

To wavelength of light by his experiment , Newton utilized:

Question # 16

The digital modulation is expressed in

Question # 17

Which one of the following phenomena is not explained by Huygen's construction of wavefront?

Question # 18

A lens behaves as a converging lens in air and a diverging lens in water the refractive index of the material is

Question # 19

Graham Bell photo phone used a modulated beam of

Question # 20

For single slit diffraction the first minimum occurs when

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The answers are also available here to facilitate the students' preparation. With continuous practice, the candidates will be able to get a good score on the entry test. So after preparing for the particular chapter, solve the MCQs and learn about your preparation. Spend maximum time to improve your weak areas and then ace the test with a good score. The students can also solve the other physics chapters' MCQs for better preparation.

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MCAT Physics Chapter 7 Important MCQ's

Sr.# Question Answer
1 Which part of the spectrum is most visible?
A. Red
B. Violet
C. Yellow
D. Yellow-green
2 In YDS experiment, data given isλ= 500 nm, L = 100 cm,Δy comes out to be
A. 0.5 cm
B. 0.5 mm
C. 0.5 nm
D. 0.5 m
3 For interference to occur the two light waves should be:
A. Of two different frequencies
B. Coming from opposite directions
C. Of high intensity
D. Monochromatic
4 The scattering of X-rays from atoms in a crystalline lattice gives rise to
A. Interference
B. Diffraction
C. Reflection
D. None of these
5 The idea of Michelsion's interferometer is based on the
A. reflection of light
B. interference of light
C. refraction of light
D. all of them
6 The disadvantage of the step-index fibre can be reduced by
A. graded index fibre
B. non-graded index fibre
C. both of these
D. none of these
7 Which one of the following is nearly monochromatic
A. Light from candle
B. Light from simple lamp
C. Light from sodium lamp
D. Light from sun
8 In compound microscope the focal length of eye piece is
A. Large
B. Small
C. Same as objective
D. None of these
9 A completely transparent material will be invisible in vacuum when the refractive index n is
A. Unity
B. More than unity
C. Less than unity
D. Equal to 1.33
10 The difference between 1st ring fringe and 1st dark fringe is measured as
A. λD/2d
B. λD/d
C. λD/4d
D. 2λD/d

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