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

Michelson's interferometer is an instrument that is capable of measuring distance with

Question # 2

A thin layer of oil on the surface of water looks colored due to:

Question # 3

Wave front is the locus or all points in vibration are in the same

Question # 4

Intensities of the two waves of light are I and 4I.The maximum intensity of the resultant wave after superposition is

Question # 5

The magnification is negative for

Question # 6

Which does not show polarization

Question # 7

Television signal are converted into light signals by

Question # 8

Which one light source can travel faster through optical fibre is

Question # 9

When θ = 0 in relation d sinθ = λ, the path difference between the rays coming out from the slits of the grating will be zero. So the image in this directions is

Question # 10

The brilliance of diamond is

Question # 11

The total internal reflection takes place for glass-air boundary is then the angle is

Question # 12

If focal length of objective is increased

Question # 13

Which is having minimum wavelength?

Question # 14

Spherical aberration can be reduced by using

Question # 15

Two light sources obtained from single source are called

Question # 16

The distance between the objective and eye-piece of a telescope in normal adjustment is

Question # 17

X-rays interact with

Question # 18

Fringe spacing in YDS experiment will be maximum if we use:

Question # 19

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

Question # 20

How is the image formed by a convex lens affected if the upper half of the lens is covered with a paper

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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 Photo phone was invented by
A. Edison
B. Graham Bell
C. Bardeen
D. None of these
2 A beam of light enters air from water.Which of the following characteristics of light will not change in water?
A. Frequency
B. Wavelength
C. Velocity
D. Amplitude
3 If 5000 lines per cm are ruled on different on a diffraction grating then the slit spacing will be
A. 5 x 10-3A°
B. 2 x 10-4A°
C. 5 x 10-5A°
D. 2 x 104A°
4 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
5 With a step-index fibre, the overall time difference between all the wavelengths arrived at the other end may be about
A. 43 s per km
B. 33 s per km
C. 1 ns per km
D. 33 ns per km
6 YDS experiment can be used to determine:
A. Grating element
B. Fringe spacing
C. Wave length of monochromatic light
D. Frequency of wave light
7 According to Huygen's principle, every point of a wavefront may be considered as a source of
A. primary wavelets
B. secondary wavelets
C. either of them
D. both of them
8 To observe diffraction phenomenon the size of a obstacle
A. Should be much larger than the wavelength
B. Should be of the same order as the wavelength
C. Have no relation of wavelength
D. Should be exactly λ/2
9 If N is the number of rulings on the grating, then the resolving power in the mth order diffraction equals to
A. R = N × m
B. R = N/m
C. R = m/N
D. R = N × m2
10 The re conversion of light signals into electrical signals takes place due to
A. Transmitter
B. Receiver
C. Generator
D. None of these

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