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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  • Total Questions20

  • Time Allowed20

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MDCAT Physics Chapter 7 Light Online Test

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Question # 1

The ultra-purity of optical fibre is

Question # 2

Huygen's theory cannot explain:

Question # 3

A fiber of 50μm diameter capable of carrying white light at ______ distances is called ______ index fiber

Question # 4

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

Question # 5

Light waves are:

Question # 6

For a monochromatic light passing from air to glass, which one of the following statement is true?

Question # 7

Who attempted to measure the speed of light

Question # 8

A thin film is a transparent medium whose thickness is comparable with the wavelength of

Question # 9

If the two reflected waves reinforce each other then the firm as seen from the parallel beam of monochromic light will look

Question # 10

A completely transparent material will be invisible in vacuum when the refractive index n is

Question # 11

An object is placed at a distance 18 cm from a convex lens. The image is formed at a distance of 9 cm the focal length of the lens is

Question # 12

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?

Question # 13

The concentration in solution can be determined by the property known as

Question # 14

The sky appears blue because

Question # 15

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

Question # 16

A spectrum which contains all wavelengths without any break is called

Question # 17

In a diffraction fringes pattern the fringes are

Question # 18

To observe interference of light the condition which must be met with is that the sources must be:

Question # 19

In Young's double slit experiment fringe width (or fringe spacing) depends

Question # 20

Why laser rays are used to measure long distance?

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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 a plane polarized light is passed through certain crystals they
A. Are totally absorbed
B. Are totally reflected
C. Rotate the plane of polarization
D. None of these
2 If the distance of a surface from light source is doubled,then the luminance will become
A. 1/4 times
B. 1/2 times
C. 2 times
D. 4 times
3 Characteristics of optic fibre is/are
A. Much thineer
B. Light weight
C. Extremely wide bandwidth
D. All of these
4 The splitting of white light into several colors on passing through a glass prism is due to
A. Refraction
B. Reflection
C. Interference
D. Diffraction
5 In digital modulation, the LED or laser flashed on and off at a
A. Fast rate
B. Very fast rate
C. Extremely fast rate
D. None of these
6 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
7 In viewing the distant objects the angle subtended at the telescope is
A. Smaller
B. Bigger
C. Very large
D. None of these
8 When the source of light is at very large distance, the shape of wavefront is:
A. Spherical
B. Cylindrical
C. Plane
D. None of these
9 If the cover of a red book is observed in monochromatic blue light,It will appear
A. White
B. Red
C. Black
D. Blue
10 If a glass slab is placed in the path of a converging beam of light The point of convergence of light
A. Moves away from the glass slab
B. Moves towards the glass slab
C. Remains at the same point
D. Moves straight

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