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

Ultra-violet rays differ from X-rays in that ultra - violet rays

Question # 2

One angshom is equal to?

Question # 3

Newton's rings are formed due to

Question # 4

In Newton s rings the central spot appears dark due to

Question # 5

Two monochromatic radiations X and Y are incident normally on a diffraction grating.The second order intensity maximum for X coincides with the third order intensity maximum for Y what is the ratio wavelength of X/wavelength of Y?

Question # 6

Angle subtended by any side of the eight-sided mirror at the center is

Question # 7

Due to dispersion effects, white light source is useful for

Question # 8

The speed at which light travels within the material depends upon

Question # 9

A monochromatic source of light gives light of

Question # 10

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

Question # 11

An oil surface floating on water surface exhibits beautiful colour patter, which is due to 

Question # 12

Single mode step index fibre has a very thin core of about diameter

Question # 13

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

Question # 14

Critical angle of light passing from glass to air is minimum for

Question # 15

The maximum size of an object as seen by the naked eye is obtained when it is placed of

Question # 16

Maximum number of orders available with a grating is ______ grating element

Question # 17

In Young s double slit experiment if we use white light then

Question # 18

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

Question # 19

The refractive index of a medium is defined as a ratio

Question # 20

At certain speed, the time taken by light in moving from M to m and back to M is equal to the time taken by

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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 speed of light in a medium of refractive index 1.5 is
A. 3 x 108ms-1
B. 4.5 x 108ms-1
C. 2.0 x 108ms-1
D. None of these
2 Diffraction of X-ray by crystals show that
A. The intensity of X-rays
B. X-rays have very short wavelength
C. X-rays are electromagnetic waves
D. A-rays are just like visible light
3 Which one of the following is nearly monochromatic
A. Light from candle
B. Light from simple lamp
C. Light from sodium lamp
D. Light from sun
4 The twinkling of stars is due to
A. The fact that stars do not emit light continususly
B. The refractive index of the earth's atmosphere fluctuate
C. Intermittent absorption of star light by its own atmosphere
D. None of these
5 A convex lens of focal length 5 cm is used as magnifying glass Its magnifying power when the image is formed at infinity
A. 6
B. 5
C. 1.5
D. 7
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 The light which has components in all directions is called
A. unpolarized light
B. polarized light
C. intense light
D. none of them
8 If a source of light is moving away from stationary observer then frequency of light wave appears to change because of
A. Doppler's effect
B. Interference
C. Diffraction
D. None of the above
9 The difference between 1st ring fringe and 1st dark fringe is measured as
A. λD/2d
B. λD/d
C. λD/4d
D. 2λD/d
10 When an image formed by the objective lies at the focus of both the objective and the eye-piece, the telescope is said to be in
A. Final adjustment
B. Normal adjustment
C. Initial adjustment
D. None of these

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