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

Which one of the following is nearly monochromatic

Question # 2

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

Question # 3

An optical fibre with its protective case may be typically

Question # 4

A prism splits a beam of white light into its seven constituent colors.This is so because

Question # 5

Snell's Law is defined as

Question # 6

The wave length of x-rays is of the order of

Question # 7

Which of the following phenomenon cannot take place if we consider light as longitudinal wave?

Question # 8

Phenomenon of interference and diffraction support the:

Question # 9

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

Question # 10

What will be the colour of the sky as seen from the earth if there were no atmosphere ?

Question # 11

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

Question # 12

Who devise the experimental arrangement in 1801 for studying interference effects of light

Question # 13

If the light travels in a straight line, the central region should appear

Question # 14

The light waves and radio waves differ in

Question # 15

We can achieve polarization by

Question # 16

Which optical fibre is used for shorter distances only?

Question # 17

Resolving power of a telescope depends on:

Question # 18

To observe diffraction phenomenon the size of a obstacle

Question # 19

In an optical fibre the speed of light is

Question # 20

The absence of light in the optical fibres represents the number

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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 The medium in which speed of light is the same in all directions is called:
A. Homogeneous
B. Heterogeneous
C. Non-homogeneous
D. Free space
2 Sun has elliptical shape when it rises and sets due to
A. Refraction
B. Reflection
C. Scattering
D. Dispersion
3 How is the interference pattern in Young's double slit experiment affected if the sodium light is replaced by red light of the same intensity
A. The fringes will vanish
B. The fringes will become brighter
C. The fringes will increase
D. The fringes will decrease
4 If the path difference must be an integral multiple of wavelength
A. sin θ = md/λ
B. d sin θ = mλ
C. d sin θ = m/λ
D. d sin θ = λ/m
5 According to Huygen's principle:
A. Light travel in straight line
B. Light is a transvers wave
C. Light has dual nature
D. All point on the primary wavefront are the sources of secondary wavelets
6 Fringe spacing ΔY is the distance between two adjacent bring fringes on the screen is
A. ΔY = Lλ/d
B. ΔY = Ld/λ
C. ΔY = dλ/L
D. ΔY = Lλ/d m
7 When monochromatic light is incident, making certain angle, on a thin parallel film, the interference fringes formed are
A. straight
B. circular
C. square
D. plane
8 Finger prints on paper are identified by sprinkling fluorescent powder on it and observing it under
A. Sun light
B. Sodium light
C. Infrared
D. UV
9 To wavelength of light by his experiment , Newton utilized:
A. Wavelength of light
B. Intensity of light
C. amplitude wave
D. None of above
10 The points on a Huygen's wave front which sends out secondary wavelets are also
A. Source
B. Source of secondary wavelets
C. Coherent sources of light
D. None of these

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