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

The position of a new wavefront after a certain interval of time can be found by constructing a surface that is

Question # 2

One angshom is equal to?

Question # 3

The angle with the horizontal at which an underwater swimmer will see the setting sun is

Question # 4

For total internal reflection to take place, the angle of incidence must be ______ than critical angle and the light should travel from ______ to ______ medium

Question # 5

A line which represents the direction of travel of a wave is known as

Question # 6

For which color of light the refractive index of glass is larger

Question # 7

Light is a type of energy which produces sensation of

Question # 8

When the light waves of the same frequency and amplitude travelling in the same direction superimose each other , they give rise to

Question # 9

Due to Plano convex lens and the plane glass plate the thickness of air film changes from the center to outward

Question # 10

Spectrometer can be used to

Question # 11

In diffraction grating has feature/features like

Question # 12

A _____ lens is used in the apparatus to get newton's ring:

Question # 13

Characteristics of optic fibre is/are

Question # 14

The speed of light in vacuum is 3 x 108 ms-1.Its speed in a medium of refractive index 1.5 will be

Question # 15

A fibre optic communication system consists of

Question # 16

Diffraction effect is

Question # 17

Light waves are:

Question # 18

Rainbow is formed due to combination of

Question # 19

X-ray diffraction has been very useful in determining structure of

Question # 20

A thin film is a transparent medium whose thickness with the wavelength of light 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 The disadvantage of the step-index fibre can be reduced by
A. graded index fibre
B. non-graded index fibre
C. both of these
D. none of these
2 Wavelength of X-rays falling at a glancing angle of 30° on a crystal with atomic spacing 2 x 10-10m for first order diffraction is
A. 4 x 10-10m
B. 2 x 10-10m
C. 0.2 x 10-10m
D. 20 x 10-10m
3 In YDS experiment, if the distance between the slits and also the distance between slits and screen is doubled, the fringe width
A. Becomes doubled
B. Becomes 4 times
C. Is halved
D. Remains the same
4 A prism splits a beam of white light into seven component colors. This is so because
A. Phase of different colors is different
B. Amplitude of different colors is different
C. Energy of different colors is different
D. Velocity of different colors is different
5 A spectrometer is an optical device used to study the spectra from different sources of light which is
A. Absorption spectra
B. Emission spectra 
C. Discrete spectra
D. None of these
6 If the incident light contains different wavelengths the images of each wavelength for a certain value is diffracted in the
A. Same directions
B. Different direction
C. Opposite direction
D. None of these
7 An oil surface floating on water surface exhibits beautiful colour patter, which is due to 
A. Reflection of light
B. Diffraction of light
C. Interference of light
D. None of these
8 In thin film colours are due to
A. Reflection
B. Interference
C. Diffraction
D. Refraction
9 The direction of a ray of light is.......to the wave front.
A. Parallel
B. Equal
C. Opposite
D. Perpendicular
10 If the magnification M1 = 20.0 for objective and M2 = 12.0 then total magnification is
A. 200
B. 240
C. 260
D. 280

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