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

The phenomenon of diffraction can be exhibited by

Question # 2

Commercial polarizing material is

Question # 3

In Newton's rings the thickness of air film at the point of contact is

Question # 4

To observe interference of light the condition which must be met with is that the sources must be:

Question # 5

In thin film colours are due to

Question # 6

When crest of one wave coincides with the trough of the other wave, it give rise to

Question # 7

Which of the following cannot be polarized?

Question # 8

For constructive interference path difference should be

Question # 9

Basic principle of an optical fibre is

Question # 10

The optical fibre has a layer over the central layer is called cladding of refractive index

Question # 11

For interference to occur,the interfering beams of light must be

Question # 12

The points on a Huygen's wave front which sends out secondary wavelets are also

Question # 13

In Michelsion's interoferometer, if the moveable mirror is moved through a distance 0.05 mm and 500 finges are observed, then the wavelength of light used is

Question # 14

Conditions for interference are that the two sources should be coherent and

Question # 15

How is the image formed by a convex lens affected if the upper half of the lens is covered with a paper

Question # 16

A two-slit arrangement is set up to produce an interference pattern on a screen. The fringes are too close together for convenient observation. How could the distance between them be increased?

Question # 17

Spectrometer can be used to

Question # 18

At what distance should a book be placed from a 50 Cd bulb so that the luminance on the book becomes 2 Im m-2

Question # 19

There will be no change in _______ of light entering glass

Question # 20

Electromagnetic waves transport:

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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 A tourmaline crystal is being used as an analyzer In one complete rotation of the crystal the number of excitation will be
A. 0
B. 1
C. 2
D. 4
2 The fringe spacing in case of blue light
A. Increases
B. Remains the same
C. Decreases
D. None of these
3 Which phenomenon of light takes place in Young's double-slit experiment?
A. polarization of light
B. diffraction of light
C. interference of light
D. reflection of light
4 The speed of light in a medium of refractive index 1.5 is
A. 3 x 108ms-1
B. 4.5 x 108ms-1
C. 2.0 x 108ms-1
D. None of these
5 A convex lens is dipped in a liquid whose refractive index is equal to the material of the lens. Then its focal length will become
A. Infinite
B. Zero
C. Extremely small
D. Extremely large
6 The critical angle for a ray of light suffering total internal reflection will be smallest for the ray traveling from
A. Water to glass
B. Water to air
C. Glass to air
D. Glass to water
7 The apparent size of an object depends on the angle subtended but it at the eye. As the angle increases the size of the object
A. Smaller
B. Larger
C. Very large
D. None of these
8 The speed of the secondary wavelets as mentioned in Huygen's principle is ________ the speed of propagation of the wave itself
A. Equal to
B. Greater than
C. Smaller than
D. None of these
9 Multi-mode step index fibre index fibre is used to send
A. white light
B. green light
C. a strong monochromatic light
D. yellow light
10 Which of the following cannot be polarized?
A. x-rays
B. light rays
C. sound waves
D. ultraviolet rays

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