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

A wider objective and the use of blue light of short wavelength produces

Question # 2

Which one of the following phenomena is not explained by Huygen's construction of wavefront?

Question # 3

If a source of light is moving away from stationary observer then frequency of light wave appears to change because of

Question # 4

A double convex lens acts as a diverging lens when the object is

Question # 5

In an interference pattern of Young,s Double Slit (YDS) experiment

Question # 6

In the study of interference and diffraction, we consider

Question # 7

The distance between the centres of two consecutive bright fringes (or dark fringes) is called

Question # 8

In multimode graded index fibre core and cladding has boundary

Question # 9

Wavelength of light of frequency 100 Hz is

Question # 10

A normal to the waves front showing direction of propagating of wave is called

Question # 11

Measurement of a standard metre in terms of the wavelength of red cadmium light is

Question # 12

The most common method to obtain plane polarized light by using dichoric substance is:

Question # 13

While viewing a distant object with a telescope suddenly a housefly sits on objective lens.The correct statement is that

Question # 14

Power of a lens is equal to

Question # 15

Ordinary light has components of vibrations in

Question # 16

Newton's rings are formed due to

Question # 17

Light waves are

Question # 18

Who proposed wave theory of light

Question # 19

The light from the sun reaches to earth with wavefronts

Question # 20

In Young's double slit experiment, the fringe width depends on

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MCAT Physics Chapter 7 Important MCQ's

Sr.# Question Answer
1 Soap bubble looks colored due to
A. Dispersion
B. Reflection
C. Interference
D. Any one of these
2 A new type of optical fibre in which central core has high refractive index and its density gradually decreases towards its periphery is called
A. Step index fibre
B. Multimode step index fibre
C. Multimode graded index
D. None of these
3 A compound microscope is consists of
A. One convex lens
B. Two convex lenses
C. Two concave lenses
D. None of these
4 In thin film colours are due to
A. Reflection
B. Interference
C. Diffraction
D. Refraction
5 Critical angle of light passing from glass to air is minimum for
A. Red
B. Green
C. Yellow
D. Violet
6 The cause of mirage observed in deserts in bright sunlight is due to:
A. Refraction of light
B. Reflection of light
C. Scattering of light
D. Total internal reflection of light
7 Two sources of waves are called coherent if
A. Both have the same amplitude of vibrations
B. Both produce waves of the same wavelength
C. Both produce waves of the same wavelength having a constant phase difference
D. Both produce waves having the same velocity
8 In Young's double slit experiment,the separation between the slits is made 3 fold the fringe width becomes
A. 1/3 times
B. 1/9 times
C. 3 times
D. 9 times
9 Which of the following phenomenon cannot take place if we consider light as longitudinal wave?
A. diffraction
B. interference
C. polarization
D. reflection
10 Which mode can carry more than 14 TV channels or 14000 phone cells?
A. single mod step index
B. multimode step index
C. multimode graded index
D. all of them

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