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

Soap bubble looks colored due to

Question # 2

In Newton s rings the central spot appears dark due to

Question # 3

Let a ray of light enters from air into two media of different refractive indices. The speed of light will be ______ to refractive index

Question # 4

Huygen principle is used to determine:

Question # 5

Optical fibres function on the principle of

Question # 6

Photo phone was invented by

Question # 7

The light signals are sent from the source

Question # 8

In young's slit experiment on interference the ratio of the intensities of a bright band and a dark band is 6 : 1 the ratio of the amplitudes o the interfering waves is

Question # 9

A thin layer of oil on the surface of water looks colored due to:

Question # 10

Who attempted to measure the speed of light

Question # 11

The resolving power of telescope depends on

Question # 12

In multimode graded index fibre core and cladding has boundary

Question # 13

Which of the following is an optical fibre in which the density of central core decreases towards its periphery?

Question # 14

The wave length of x-rays is of the order of

Question # 15

If the path difference must be an integral multiple of wavelength

Question # 16

Every point of a wavefront may be considered as a

Question # 17

The lower refractive index the fibre core has

Question # 18

Longitudinal waves do not exhibit

Question # 19

The speed at which light travels within the material depends upon

Question # 20

How many major components of fibre optic communication system are

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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 Power of a lens is equal to
A. Focal length in meters
B. Reciprocal of focal length expressed in meters
C. Double the focal length
D. Half the focal length
2 In a simple microscope if the final image is located at infinity then its magnifying power is
A. 25/f
B. 25
C. f/25
D. [1 + (25/f)]
3 In Young's double slit experiment, the fringe width depends on
A. wavelength of the light used
B. distance between the slits and screen
C. distance between the slits
D. all of them
4 Which one of the following phenomenon cannot be explained on the bases of Huygen's theory?
A. Refraction
B. Reflection
C. Diffraction
D. Formation of spectrum
5 In diffraction grating has feature/features like
A. A glass plate
B. A large numbers of lines are ruled
C. Spacing between two lines acts as a slit
D. All of these
6 In thin film colours are due to
A. Reflection
B. Interference
C. Diffraction
D. Refraction
7 In Newton,s rings apparatus, we also use
A. Spectroscope
B. Telescope
C. Microscope
D. Turn table
8 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
9 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
10 A thin film is a transparent medium whose thickness is comparable with the wavelength of
A. light
B. sound
C. any one of them
D. none of them

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