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

  • Total Questions20

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MDCAT Physics Chapter 7 Light Online Test

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Question # 1

A diffraction grating of length 2cm has 4000 lines The grating element is

Question # 2

The resolution of microscope depends on objective's

Question # 3

At points where the crest (or trough) of one wave coincides with the crest (or trough) of the other wave, the wave produces

Question # 4

When the light from two lamps falls on a screen, no interference pattern can be obtained. Why is this?

Question # 5

Monochromatic light means waves of:

Question # 6

The multi-mode step index optical fibre, the central core has

Question # 7

The ratio of size of the image to the size of the object is called

Question # 8

A pulse of light in the optical fibres represents the number

Question # 9

Phenomenon of interference and diffraction support the:

Question # 10

In case of interference fringes:

Question # 11

A fiber of 50μm diameter capable of carrying white light at ______ distances is called ______ index fiber

Question # 12

Which of the following cannot be polarized?

Question # 13

A tourmaline crystal is being used as an analyzer In one complete rotation of the crystal the number of excitation will be

Question # 14

The practical use of services by optic fiber is

Question # 15

Polaroid glass is used in sun glasses because

Question # 16

When the same object is viewed at a shorter distance the image on the retina of eye is ______ and so the object appears ______

Question # 17

In case of point source of light, shape of wavefront is:

Question # 18

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

Question # 19

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

Question # 20

According to Young s experiment if frequency of light used is halved then fringe width becomes

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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 Class Physics Chapter 7 Important MCQ's

Sr.# Question Answer
1 To get high resolving power for a telescope one should use
A. Objective of large aperture
B. Objective of large focal length
C. Eye piece of large focal length
D. Eye piece of small focal length
2 In case of reflection of ray within a denser medium, angle of incidnet is ______ -angle of reflection
A. Greater then
B. Smaller then
C. Equal to
D. None of these
3 The phenomenon of polarization proves that the light waves are
A. Transverse wave
B. Longitudinal waves
C. Stationary waves
D. None of these
4 Angle between ray of light and the corresponding wavefront is:
A. 0°
B. 60°
C. 90°
D. 120°
5 Inverse square law for luminace is valid for
A. Search light
B. Isotropic point source
C. Cylindrical source
D. All types of source
6 In case of a point source, the shape of the wavefront is
A. straight
B. elliptical
C. oval
D. spherical
7 For interference to occur, the light coming from the two slits should
A. be monochromatic
B. come from the same source
C. have a constant path difference
D. all of them
8 Wave length of red colour as compared to that of violet colour is:
A. Smaller
B. Longer
C. Equal
D. None of these
9 The diffraction of light occurs, due to interference, of
A. Obstructed portion
B. Unobstructed portion
C. Both obstructed and unobstructed light
D. None of these
10 Turn table is the plateform over which we place
A. Diffraction grating
B. Prism
C. Glass slab
D. a and b

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