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

A spectrometer is used to find

Question # 2

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

Question # 3

Which one of the following waves cannot be polarized

Question # 4

In the thin film, the path difference between the two reflecting waves depends upon

Question # 5

Light waves produce interference when

Question # 6

In Bragg's formula, the path difference should beam integral multiple of the wavelengths

Question # 7

The distance between different interference fringes are:

Question # 8

In Multimode step index fibre the refractive index from its centre to the boundary is

Question # 9

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

Question # 10

The time taken by light for its passage from M to m and back is

Question # 11

Wavelength of red color as compared to that of violet color is

Question # 12

How many types of the optical fibres are

Question # 13

The organic substances which shows optical rotation when they are in solution

Question # 14

A lens behaves as a converging lens in air and a diverging lens in water the refractive index of the material is

Question # 15

Which of the following is conserved when light waves interfere

Question # 16

How many major components of fibre optic communication system are

Question # 17

In Young s double slit experiment the separation between the slits in halved and the distance between the slits and the screen is doubled the fringe with will

Question # 18

Plane microwaves are incident on a long slit having a width of 5 cm.The wavelength of the microwaves if the first minima is formed at 30° is

Question # 19

Point out angle/angle at which the sin θ and tan θ have the same value

Question # 20

Longitudinal waves do not exhibit

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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 When refractive index of core is 1.50 and of 1.48 of cadding then find the angle of entry for an optical fibre is
A. 11.2o
B. 14.2o
C. 15.4o
D. 13.6o
2 Which of the following colors suffers maximum deviation in a prism?
A. Yellow
B. Blue
C. Green
D. Orange
3 An object is placed between two parallel mirrors the number of images formed is
A. 2
B. 4
C. 8
D. Infinite
4 A plane wavefront is that which has source
A. Nearest
B. Distant
C. Near
D. None of these
5 In order to observe interference , the interfering beams must be
A. monochromatic
B. coherent
C. either of them
D. both of them
6 Spectrometer can measure quite accurately prism
A. Deviation of light by a glass prism
B. Angle of prism
C. Refractive index of the material of prism
D. None of these
7 The light form Sun reaches earth in the form of
A. plane wavefront
B. circular wavefront
C. spherical wavefront
D. elliptical wavefront
8 Which electromagnetic wave would cause the most significant diffraction effect for an atomic lattice of spacing around 10-10m?
A. microwave
B. infrared
C. ultraviolet
D. X-ray
9 In YDS experiment, at the center of screen is formed a:
A. Dark fringe
B. Bright fringe
C. No fringe at all
D. None of these
10 An oil film floating on water surface show colours due to
A. Interference
B. Diffraction
C. Scattering
D. Reflection

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