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

In multimode graded index fibre core and cladding has boundary

Question # 2

For single slit diffraction the first minimum occurs when

Question # 3

The distance between different interference fringes are:

Question # 4

There will be no change in _______ of light entering glass

Question # 5

The dichronic substances are used in the process getting plane polarized light

Question # 6

Using a graded index fibres the time difference is reduced to about

Question # 7

We can use Fibre optics system for

Question # 8

Why laser rays are used to measure long distance?

Question # 9

In which of the optical fibres, the propagation of light signal is through continuous refraction?

Question # 10

Phenomenon of interference and diffraction support the:

Question # 11

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

Question # 12

According to Huygen's principle, every point of a wavefront may be considered as a source of

Question # 13

According to Huygen's principle:

Question # 14

To observe interference of light the condition which must be met with is that the sources must be:

Question # 15

Multimode step index fibre is useful for

Question # 16

If tube length of astronomical telescope is 105 cm and magnifying power is 20 for normal setting calculate the focal length of objective

Question # 17

A ______ lens is used in the apparatus to get Newton,s rings

Question # 18

The central point in the Newton's rings is dark due to

Question # 19

A polarizer is used to

Question # 20

Which of the following is the most common method to obtain polarized light?

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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 Which of the following properties show light is transverse wave in nature?
A. Interference
B. Reflection
C. Diffraction
D. Polarization
2 In thin film colours are due to
A. Reflection
B. Interference
C. Diffraction
D. Refraction
3 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?
A. The entire field of view blocked
B. There is an image of the fly on the photography
C. There is no effect at all
D. There is a reduction in the intensity of the image
4 The organic substances which shows optical rotation when they are in solution
A. Tartaric acid
B. Sugar
C. Alcohol
D. a and b
5 The spacing between lines of diffraction grating is
A. Opaque
B. Transparent
C. Semi-transparent
D. None of these
6 In compound microscope the focal length of eye piece is
A. Large
B. Small
C. Same as objective
D. None of these
7 If yellow light emitted by sodium lamp in Young's double slit experiment is replaced by blue light of the same intensity:
A. Fringe width will decrease
B. Fringe width will increase
C. Fringe width will remain unchanged
D. Fringe will become less intense
8 The length of the standard metre measured by Michelsion's interferometer comes out to be
A. 1,553, 163.5 wavelength
B. 1553.5 wavelength
C. 155316.5 wavelength
D. none of them
9 A converging lens in used to from an image on a screen when the upper half of the lens is covered by an opaque screen
A. Half the image will disappear
B. No change either in size or in intersity
C. Intensity of image will increase
D. Intensity of the image will decrease
10 Which effect provides direct experimental evidence that light is a transverse rather than a longitudinal wave motion?
A. Light can be diffracted
B. Two coherent light waves can be made to interfere.
C. The intensity of light from a point source falls off inversely as the square of the distance from the source
D. Light can be polarized

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