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 of the following is conserved when light waves interfere?

Question # 2

The phase difference between two points on a wave front will be

Question # 3

A grating with high resolving power can distinguish ______ difference in ______

Question # 4

Which does not show polarization?

Question # 5

In normal adjustment, the length of the telescope is

Question # 6

The light source in the transmitter can be either

Question # 7

On a rainy day if there is an oil drop on tar road colored rings are seen around this drop This is because of

Question # 8

When refractive index of core is 1.50 and of 1.48 of cadding then find the angle of entry for an optical fibre is

Question # 9

The contrast in the fringes in an interference pattern depends upon

Question # 10

The speed of light in vacuum is 3 x 108 ms-1.Its speed in a medium of refractive index 1.5 will be

Question # 11

For interference to occur the two light waves should be:

Question # 12

The wave nature of light was first proposed by

Question # 13

Frequency of red colour as compared to that of violet colour is:

Question # 14

If yellow light emitted by sodium lamp in Young's double slit experiment is replaced by blue light of the same intensity:

Question # 15

According to Huygen's principle:

Question # 16

In newton's rings apparatus, we also use:

Question # 17

A circular scale is attached and graduated in

Question # 18

In YDS experiment using white light

Question # 19

The idea of Michelsion's interferometer is based on the

Question # 20

A double convex lens acts as a diverging lens when the object is

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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 Chapter 7 Important MCQ's

Sr.# Question Answer
1 Michelsion devised the Michelson's interferometer in
A. 1981
B. 1891
C. 1851
D. 1881
2 Polaristion is a phenomenon associated with a certain type of wave.
Which condition must be fulfilled if the wave is to be polarised?
A. It must be a light wave
B. It must be a longitudinal wave
C. It must be a light wave
D. It must be a transverse wave
3 The speed at which light travels within the material depends upon
A. Refractive index of medium
B. Wavelength
C. Frequency
D. Intensity
4 At the point of contact of the lens and the glass plate, the Newton's ring is
A. dark
B. bright
C. either of them
D. neither of them
5 To demonstrate the phenomenon of interference we require two sources that emit radiation
A. Of same frequency
B. Different wavelength
C. Of the same frequency and having definite phase relationship
D. Of nearly the same frequency
6 A thin film is a transparent medium whose thickness with the wavelength of light are
A. Not comparable
B. Comparable
C. Both
D. None of these
7 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°
8 For constructive interference the path difference is
A. mλ
B. (m-1)λ
C. m2λ
D. 1/2mλ
9 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
10 A telescope is rotatable about the same vertical axis as the turntable, with a scale which is
A. Main scale
B. Vernier scale
C. Half degree scale
D. None of these

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