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

  • Total Questions20

  • Time Allowed20

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MDCAT Physics Chapter 7 Light Online Test

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Question # 1

A plane wavefront is that which has source

Question # 2

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

Question # 3

A monochromatic source of light gives light of

Question # 4

We can observe only when the grating spacing is

Question # 5

The fibre core has constant refractive index such as

Question # 6

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

Question # 7

In a astronomical telescope the final image for normal vision is formed at

Question # 8

At what distance should a book be placed from a 50 Cd bulb so that the luminance on the book becomes 2 Im m-2

Question # 9

Monochromatic light means waves of:

Question # 10

A usual way to obtain a plane wave is to place point source of light at the focus of a

Question # 11

In the Newton's ring, as we proceed towards the periphery of the lens, the thickness of air film

Question # 12

If the magnification M1 = 20.0 for objective and M2 = 12.0 then total magnification is

Question # 13

By which principle we can locate the position of new wavefront after a later time?

Question # 14

Which of the following colors will have minimum critical angle when light passes from glass to air

Question # 15

With tremendous information carrying capacity is called

Question # 16

The wavelength of light is 6000°A, the number of waves continued in 0.01 m distance will be

Question # 17

Speed of light in vacuum depends upon:

Question # 18

Diffraction of light occurs, due to the interference between rays coming from the same wavefront of

Question # 19

Which one of the following can act approximately as a source of monochromatic light:

Question # 20

Optical device used in spectrometer

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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 A fibre optic communication system consists of
A. one major component
B. two major components
C. three major components
D. four major components
2 If a lens is cut into two piece perpendicular to the principal axis and only part is used the intensity of the image:
A. Remains same
B. 1/2 times
C. 2 times
D. Infinite
3 According to Young s experiment if frequency of light used is halved then fringe width becomes
A. 2/3
B. Double
C. Remains constant
D. Fringe
4 The light signals are sent from the source
A. A ordinary source
B. A monochromatic light source
C. A moulticolour source
D. None of these
5 The fringes produced in Young's double slit experiment will be wider if the distance between the two slits is
A. small
B. large
C. zero
D. very large
6 When a light signal travels along the length of the optical fibre, the power lost by it is due to
A. Reflection
B. Refraction
C. Seattering and absorption
D. Diffraction
7 The relation for the diffraction pattern, when it is minimum
A. d/2 sin θ = λ
B. sin θ = λ/2
C. d sin θ = λ
D. None of these
8 Light of wavelength 800 n m is incident on a pair of slits, forming fringes 4.0 mm apart on a screen. What is the fringe when light of 400 nm is used and the slit separation is halved?
A. 2.0 mm
B. 1.0 mm
C. 4.0 mm
D. 0.5 mm
9 In YDS experiment, condition for constructive interference is that path difference is equal to
A. nλ
B. mλ
C. (n + 1/2)λ
D. (m + 1/2)λ
10 Which of the following properties show light is transverse wave in nature?
A. Interference
B. Reflection
C. Diffraction
D. Polarization

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