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

Propagation of light in an optical fibre requires

Question # 2

A line normal to the wavefront including the direction of motion is called

Question # 3

Which of the following is an optical fibre in which the density of central core decreases towards its periphery?

Question # 4

The property of bending of light around obstacies is called

Question # 5

Multimode step index fibre is useful for

Question # 6

When a light signal travels along the length of the optical fibre, the power lost by it is due to

Question # 7

Basic principle of an optical fibre is

Question # 8

On a diffraction grating which thing acts as a slit

Question # 9

Which device converts the light signals which these amplified and decoded

Question # 10

Who devise the experimental arrangement in 1801 for studying interference effects of light

Question # 11

If the red light is replaced by blue light illuminating the object in a microscope the resolving power of the microscope

Question # 12

Optic fibers are related with

Question # 13

The plane of polarization is rotated many degrees when a thickness of such crystal is

Question # 14

To get higher magnification we must use

Question # 15

The cause of power loss in optic fibre is

Question # 16

Which of the following is conserved when light waves interfere

Question # 17

YDS experiment can be used to determine:

Question # 18

A prism splits a beam of white light into its seven constituent colors.This is so because

Question # 19

According to Huygen's principle:

Question # 20

A converging lens in used to from an image on a screen when the upper half of the lens is covered by an opaque screen

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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 In Michelson interferometer if the moveable mirror is moved through a distance of 8λ then the number of fringes shifted are
A. 4
B. 8
C. 16
D. 32
2 A thin layer of oil on the surface of water looks colored due to:
A. Diffraction of light
B. Reflection of light
C. Dispersion of light
D. Interference effect of light
3 Frequency of red colour as compared to that of violet colour is:
A. Equal
B. Smaller
C. Greater
D. None of these
4 An optical fiber of ______ cm in diameter id equivalent to 7.62 cm diameter bundle of ______ wires to carry the same amount of signals
A. 0.6, aluminum
B. 6.0, copper
C. 0.6, copper
D. 6.0, aluminum
5 A fly is sitting on the objective of a telescope pointed towards the moon.What effect is expected on the photography of the moon taken through the telescope?
A. The entire field of view blocked
B. There is an image of the fly on the photography
C. There is no effect at all
D. There is a reduction in the intensity of the image
6 Two sources of light are said to be coherent when the waves produced by them have
A. Equal wavelength
B. Equal amplitude
C. Equal wavelength and constant phase difference
D. Amplitude and wavelength are same
7 In the thin film, the path difference between the two reflecting waves depends upon
A. thickness of film
B. nature of film
C. angle of incidence
D. all of them
8 The spacing between lines of diffraction grating is
A. Opaque
B. Transparent
C. Semi-transparent
D. None of these
9 An object is placed between two parallel mirrors the number of images formed is
A. 2
B. 4
C. 8
D. Infinite
10 The study of atomic structure of crystals by X-rays was initiated by W.H.. Bragg and W.L. Bragg in
A. 1920
B. 1926
C. 1910
D. 1914

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