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

The relation between displacement of the mirror 'L' and wavelength λ of the light used

Question # 2

Which one of the following phenomenon cannot be explained on the bases of Huygen's theory?

Question # 3

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

Question # 4

The brilliance of diamond is

Question # 5

The direction of a ray of light is.......to the wave front.

Question # 6

Light appears to travels in straight lines since

Question # 7

According to the Huygen's principle, the secondary wavelets propagate in the forward direction with a speed equal to

Question # 8

The blue color of sky is due to:

Question # 9

Light waves produce interference when

Question # 10

Huygen's wave theory of light cannot explain

Question # 11

A polarizer is used to

Question # 12

Sunlight is also partially polarized because of Earth's atmosphere due to scattering by

Question # 13

Power loss taken place when a light signal travels along fibres by

Question # 14

How many major components of fibre optic communication system are

Question # 15

For a system to transmit thousands of telephones conversations, several television programs and numerous data signals, it need the following number so threads of optical fibre

Question # 16

X-ray diffraction has been very useful in determining structure of

Question # 17

The speed of light in vacuum or in air is

Question # 18

If d = 0.25 cm   Y = 0.059 cm   L = 100 cm    m = 2 then λ is equal to

Question # 19

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

Question # 20

The eye piece of a compound microscope acts as a

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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 Such type of fibre in which center core is of high refractive index and the layer over the central core is low refractive index is called
A. Step index fibre
B. Multi mode step index fibres
C. Multimode graded index fibre
D. None of these
2 In Michelsion's interferometer the path difference is varied by moving
A. compensatory plate
B. moveable mirror
C. fixed mirror
D. telescope
3 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
4 The wavelength of X-rays is about
A. 10-14m
B. 10-10m
C. 10-6m
D. 10-4m
5 Monochromatic light means waves of:
A. Same frequency
B. Same colour
C. Same wavelength
D. All of them
6 Which one of the following can act approximately as a source of monochromatic light
A. Neon lamp
B. Fluorescent tube
C. Sodium lamp
D. none of these
7 An optical instrument used to see very far off objects is called
A. Telescope
B. Camera lens
C. Microscope
D. Spectrometer
8 The ultra-purity of optical fibre is
A. 90 % 
B. 99 %
C. 99.9 %
D. 99.99 %
9 Fiber optics also used to transmit light
A. Around corners
B. Into inaccessible place
C. Formerly unobservable objects
D. All of these
10 In a diffraction fringes pattern the fringes are
A. Equally spaced
B. Wider near the centre and narrower away from it
C. Narrower near the centre and Wider away from it
D. None of these

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