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

Which property of waves proves that light is a transverse wave?

Question # 2

Colours seen on oily water surface by the incident white light is due to

Question # 3

If 5000 lines per cm are ruled on different on a diffraction grating then the slit spacing will be

Question # 4

A completely transparent material will be invisible in vacuum when the refractive index n is

Question # 5

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

Question # 6

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

Question # 7

The tip of a needle does not give a sharp image it is due to

Question # 8

The ratio of the diameter of two convex lenses is the ratio of their focal lengths

Question # 9

Mirage is a phenomenon due to

Question # 10

The light signal in graded index fibre is totally confined due to

Question # 11

Which one of the following phenomenon cannot be explained on the bases of Huygen's theory?

Question # 12

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?

Question # 13

Certain light of wavelength 600 nm is used to view an object under the microscope. If the aperture of its objective is 1.22 cm, then the limiting angle of resolution will be

Question # 14

Diffraction of X-ray by crystals show that

Question # 15

The light signal in an optical fibre is totally confined due to the

Question # 16

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

Question # 17

When a plane polarized light is passed through certain crystals they

Question # 18

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

Question # 19

Turn table is the plateform over which we place

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 The contrast in the fringes in any interference pattern depends on
A. Frings width
B. Intensity ratio of the sources
C. Distance between the slits
D. Wavelength
2 A beam of light of wavelength is incident normally on a grating of element d the angle between the zero-order and first -order spectra depends on
A. λ only
B. d only
C. λ and d
D. λ d and distance of screen from the grating
3 Wavelength of red color as compared to that of violet color is
A. Smaller
B. Longer
C. Equal
D. None of these
4 The resolving power of a grating spectrometer is
5 Plane polarized light can be produced by:
A. Simple reflection
B. Refraction
C. Selective absorption
D. All of these
6 When light passes through a tourmaline crystal, it becomes
A. plane polarized
B. directly polarized
C. un-polarized
D. spherically polarized
7 The materials which are used in selective absorption method to polarize the light are
A. chronic substances
B. organic substances
C. inorganic substances
D. diachronic substance
8 Light appears to travels in straight lines since
A. It is not absorbed by the atmosphere
B. It is reflected by the atmosphere
C. Its wavelength is very small
D. Its velocity is very large
9 For total internal reflection to take place, the angle of incidence must be ______ than critical angle and the light should travel from ______ to ______ medium
A. Greater, rarer, denser
B. Smaller, rarer, denser
C. Smaller, denser, rarer
D. Greater, denser, rarer
10 On a diffraction grating a large number of close parallel equidistant slits are ruled on it
A. By hand
B. electronically
C. mechanically
D. none of them

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