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 typical wavelength of light source in transmitter is

Question # 2

Light is a type of energy which produces sensation of

Question # 3

The fringes produced in Young's double slit experiment will be wider if the distance between the two slits is

Question # 4

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

Question # 5

Cladding means a layer of ______ refractive index over the central core of ______ refractive index

Question # 6

When monochromatic light is incident, making certain angle, on a thin parallel film, the interference fringes formed are

Question # 7

In case of destructive interference of two waves, the amplitude of the resultant wave will be ______ either of the waves

Question # 8

Multimode step index fibre is useful for

Question # 9

In multimode graded index fibre core and cladding has boundary

Question # 10

On a diffraction grating a large number of close parallel equidistant slits are ruled on it

Question # 11

A fly is sitting on the objective of a telescope pointed towards the moon.What effect is expected on the photography of the moon taken through the telescope?

Question # 12

Spectrometer using diffraction grating can measure

Question # 13

Conditions for interference are that the two sources should be coherent and:

Question # 14

The cause of mirage observed in deserts in bright sunlight is due to:

Question # 15

Phenomenon of interference and diffraction support the:

Question # 16

A beam of light enters air from water.Which of the following characteristics of light will not change in water

Question # 17

A line normal to the wave front is called

Question # 18

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

Question # 19

To get higher magnification we must use

Question # 20

A two-slit arrangement is set up to produce an interference pattern on a screen. The fringes are too close together for convenient observation. How could the distance between them be increased?

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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 If the slits in YDS experiment are made closer, fringe spacing will:
A. Increase
B. Decrease
C. Remain same
D. None of above
2 When two light waves travelling in the same direction are out of phase at any point, their resultant amplitude
A. increases
B. decreases
C. remains unchanged
D. increases rapidly
3 In thin film colours are due to
A. Reflection
B. Interference
C. Diffraction
D. Refraction
4 If a point source of light is placed at the focus of a convex lens the rays coming out of the lens will constitute
A. Plane wave fronts
B. Cylindrical wave fronts
C. Spherical wave fronts
D. All of above
5 The wavelength of X-rays is about
A. 10-14m
B. 10-10m
C. 10-6m
D. 10-4m
6 The plane of polarization is rotated many degrees when a thickness of such crystal is
A. One millimeter
B. Less than one millimeter
C. A few millimeter
D. None of these
7 Multi-mode step index fibre index fibre is used to send
A. white light
B. green light
C. a strong monochromatic light
D. yellow light
8 Maximum number of orders available with a grating is ______ grating element
A. Independent of
B. Directly proportional to
C. Inversely proportional to
D. Equal to
9 In case of reflection of ray within a denser medium, angle of incidnet is ______ -angle of reflection
A. Greater then
B. Smaller then
C. Equal to
D. None of these
10 Which optical fibre is used for shorter distances only?
A. single mode step index fibre
B. multi-mode step index fibre
C. multi-mode graded index fibre
D. all of them

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