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

Try The 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

Speed of light in vacuum is

Question # 2

In case of interference fringes:

Question # 3

Layer of oil on water in sunlight appears coloured due to

Question # 4

Which type of fibre is used to send the signals of long distances?

Question # 5

In Michelsion's interferometer, if a dark fringe is seen in the beginning, the next dark fringe will appear by moving the moveable mirror through a distance

Question # 6

The fringes produced in Young's double slit experiment will be wider if the distance between the two slits is

Question # 7

There will be no change in _______ of light entering glass

Question # 8

Every point of a wavefront may be considered as a

Question # 9

The angle of incidence at which angle of refraction becomes 900 is called

Question # 10

If 'd' 'm' and fringe spacing ΔY are known, the interference effect due to light of λ

Question # 11

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

Question # 12

Experimental demonstration of wave nature of light was given in 1801 by

Question # 13

Light waves are:

Question # 14

For obtaining equal and same height mirror should be

Question # 15

In compound microscope the focal length of eye piece is

Question # 16

Which of the following gives three regions of the electromagnetic spectrum in order of increasing wavelength?

Question # 17

Plane polarized light can be produced by:

Question # 18

An optical fiber of ______ cm in diameter id equivalent to 7.62 cm diameter bundle of ______ wires to carry the same amount of signals

Question # 19

A compound microscopes consists of objective of

Question # 20

The speed of light in vacuum or in air is

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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 newton's rings see through the reflected light, centeral spo is:
A. Bright
B. Dark
C. Either of the Two
D. None of these
2 In Young s double slit experiment if we use white light then
A. Colored fringes will be observed
B. Bright fringes will be observed
C. Alternate dark and bright fringes will be observed
D. No interference fringes will be seen
3 The light source in the transmitter can be either
A. Light emitting diode
B. Semiconductor laser
C. Light emitting in an invisible infra red
D. All of these
4 When θ = 0 in relation d sinθ = λ, the path difference between the rays coming out from the slits of the grating will be zero. So the image in this directions is
A. Dark
B. Bright
C. Non image formed
D. None of these
5 If the light travels in a straight line, the central region should appear
A. Bright
B. Dark
C. No effect
D. None of these
6 In a diffraction fringes pattern the fringes are
A. Equally spaced
B. Wider near the centre and narrower away from it
C. Narrower near the centre and Wider away from it
D. None of these
7 The twinkling of stars is due to
A. The fact that stars do not emit light continususly
B. The refractive index of the earth's atmosphere fluctuate
C. Intermittent absorption of star light by its own atmosphere
D. None of these
8 Which of the following is an optical fibre in which the density of central core decreases towards its periphery?
A. multi-mode step index fibre
B. multi-mode graded index fibre
C. both of them
D. none of them
9 Which does not show polarization
A. Longitudinal wave in gas
B. Transverse wave in gas
C. Both a and b
D. None of these
10 The transmitter in optical fiber system contains a device called
A. LED
B. Diode
C. Transistor
D. None of these

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