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

Wave length of red colour as compared to that of violet colour is:

Question # 2

A limited region taken on a wavefront which is far away form the source is

Question # 3

If a point source of light is placed at the focus of a convex lens the rays coming out of the lens will constitute

Question # 4

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

Question # 5

Huygen's wave theory of light cannot explain

Question # 6

The medium in which speed of light is the same in all directions is called

Question # 7

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

Question # 8

Huygen principle is used to determine:

Question # 9

Experimental demonstration of wave nature of light was given in 1801 by

Question # 10

In case of destructive interference of two waves, the amplitude of the resultant wave will be ______ either of the waves

Question # 11

If the focal length of objective is 10 mm find its magnification

Question # 12

The wave nature of light was proposed by

Question # 13

On a diffraction grating which thing acts as a slit

Question # 14

The speed of light in vacuum or in air is

Question # 15

Ordinary light has components of vibrations in all possible planes. Such light is

Question # 16

The conversion of electrical signals into light signals taken place due to

Question # 17

In case of constructive interference of two waves, the amplitude of the resultant wave is_____either of the waves:

Question # 18

If the slits in YDS experiment are made closer, fringe spacing will:

Question # 19

When the light from two lamps falls on a screen, no interference pattern can be obtained. Why is this?

Question # 20

In newton's rings apparatus, we also use:

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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 Which of the following is an optical fibre in which the density of central core decreases towards its periphery?
A. multi-mode step index fibre
B. multi-mode graded index fibre
C. both of them
D. none of them
2 The property of light which makes light possible to be transmitted into inaccessible place is
A. Interference
B. Diffraction
C. Polarization
D. None of these
3 For the monochromatic beam of X-rays, the crystal planes in a lattice act like a
A. perfect absorbers
B. boundary
C. mirror
D. none of them
4 The normal human eye can focus a sharp image of an object located anywhere form infinity to a certain point called
A. Far point
B. Near point
C. distant point
D. None of these
5 Power loss taken place when a light signal travels along fibres by
A. Multiple reflection
B. Light absorbed due to impurities in glass
C. At joint some light is scattered by group of atoms
D. All of these
6 A pulse of light in the optical fibres represents the number
A. 0
B. 1
C. 2
D. 3
7 Fraunhofer's lines commonly visible in the sun's spectrum are examples of
A. Line emission spectrum
B. Line absorption spectrum
C. Band emission spectrum
D. Band absorption spectrum
8 The path difference involved in interference in thin films depends upon
A. Thickness and nature of thin films
B. Angular of incidence of light
C. Nature of media on both sides of thin film
D. All of these
9 Newton's rings are formed due to
A. Refraction of light
B. Diffraction of light
C. Interference of light
D. None of these
10 A spherical wavefront is that which has
A. A source
B. A point source
C. An extended source
D. None of these

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