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

Wavelength of light, on the average, is given by

Question # 2

At the point of contact of the lens and the glass plate, the incident and reflected rays interfere

Question # 3

How is the interference pattern in Young's double slit experiment affected if the sodium light is replaced by red light of the same intensity

Question # 4

An optical instrument used to see very far off objects is called

Question # 5

The wavelength of refractive wave in a denser medium is

Question # 6

Commercial polarizing material is

Question # 7

To get three images of a single object,one should have two plane mirrors at an angle of

Question # 8

Two sources of light are said to be coherent when the waves produced by them have

Question # 9

A simple telescope is consists of

Question # 10

The bright fringes are termed as

Question # 11

We can use Fibre optics system for

Question # 12

If a lens is cut into two piece perpendicular to the principal axis and only part is used the intensity of the image:

Question # 13

Light waves are:

Question # 14

What will be the colour of the sky as seen from the earth if there were no atmosphere ?

Question # 15

If red light is incident on sea water it appears

Question # 16

When observed by transmitted light, the central band of newton's ring system consists of:

Question # 17

To demonstrate the phenomenon of interference we require two sources that emit radiation

Question # 18

In Michelson's interferometer , the plates are placed in front of incident ray at an angle of:

Question # 19

Two monochromatic radiations X and Y are incident normally on a diffraction grating.The second order intensity maximum for X coincides with the third order intensity maximum for Y what is the ratio wavelength of X/wavelength of Y?

Question # 20

Refractive index of material depends upon

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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 Who devise the experimental arrangement in 1801 for studying interference effects of light
A. Huygen
B. Young
C. Newton
D. None of these
2 Which of the following types of optical fibre has a core which rages in diameter from 50 to 1000μm?
A. single mode step fibre
B. multi-mode step index fibre
C. multi-mode graded index fibre
D. none of them
3 Mirage is a phenomenon due to
A. Reflection of light
B. Refraction of light
C. Total internal reflection of light
D. Diffraction of light
4 In an interference pattern of Ypung's double Slit (YDS) experiment:
A. Bright fringes are wider than dark fringes
B. Dark fringes are wider than bright fringes
C. Both dark and bright fringes are of equal width
D. Central fringes are wider than the outer fringes
5 Why laser rays are used to measure long distance?
A. Laser rays propagate in a straight
B. Laser rays are not absorbed
C. Laser rays are most coherent waves
D. Laser rays are high velocity waves
6 Using monochromatic light, interference fringes are produced on a screen placed a distance D from a pair of slits of separation a.
The separation of the fringes is X.
a is now halved and D is increased by a factor of 4.
What is the new fringe separation?
A. 16 X
B. 8 X
C. 4 X
D. 2 X
7 The diffraction of light occurs, due to interference, of
A. Obstructed portion
B. Unobstructed portion
C. Both obstructed and unobstructed light
D. None of these
8 A simple telescope is consists of
A. One convex lens
B. Two convex lenses
C. Three convex lenses
D. None of these
9 The least distance of distinct vision for a normal eye is
A. 15 cm
B. 25 cm
C.
35 cm
D. 1 m
10 Which one of the following phenomena is not explained by Huygen's construction of wavefront?
A. Refraction
B. Reflection
C. Diffraction
D. Origin of spectra

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