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

  • Total Questions20

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MDCAT Physics Chapter 7 Light Online Test

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Question # 1

For interference to occur, the light coming from the two slits should

Question # 2

Inspite of different dispersion, all the wavelengths arrive at the other end of the fibre at the same time. With a step-index fibre overall time difference may be about

Question # 3

A simple telescope is consists of

Question # 4

In photo phone modulated beam of reflected sun light focused on a detector several hundred meters away with the divice

Question # 5

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

Question # 6

According to the relation for constructive destructive interference, the point of contact has zero thickness of air so it should have

Question # 7

In Micheal sons interfrometes apparatus the numbers of mirrors and glas plates are used respectively ara

Question # 8

Which does not show polarization?

Question # 9

The blue color of sky is due to:

Question # 10

The organic substances which shows optical rotation when they are in solution

Question # 11

Who proposed wave theory of light

Question # 12

The difference between 1st ring fringe and 1st dark fringe is measured as

Question # 13

When two light waves travelling in the same direction are out of phase at any point, their resultant amplitude

Question # 14

To demonstrate the phenomenon of interference we require two sources that emit radiation

Question # 15

The typical example/examples of optically active crystals

Question # 16

Spectrometer using diffraction grating can measure

Question # 17

In Michelsons interference the movable mirror is moved and a shift of two fringes is observed then the distance moved by the mirror is

Question # 18

If the focal length of objective is 10 mm find its magnification

Question # 19

Sky seems blue due to

Question # 20

A ray of light passing from a rarer to a denser medium

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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 A compound microscope is consists of an eye piece  of focal length
A. Short
B. Very short
C. Large
D. Very large
2 Phase change of 180° is equivalent to a path difference of
A. 2λ
B. λ
C. λ/2
D. λ/4
3 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
4 In Young's double slit experiment for the interference of light, the central region of the fringe system is
A. Bright
B. Dark
C. Bright and dark
D. None of these
5 A planet is observed by an astronomical refracting telescope having an objective of focal length 16 m and an eyepiece of focal length 2 cm.
A. The distance between the objective and the eyepiece is 8m
B. The angular magnification of the planet is 200
C. The image of the planet is inverted
D. The objective is smaller than the eyepiece
6 A new type of optical fibre in which central core has high refractive index and its density gradually decreases towards its periphery is called
A. Step index fibre
B. Multimode step index fibre
C. Multimode graded index
D. None of these
7 According to WH Bragg and WL Bragg monochromatic beam of X-rays was reflected form a crystal plane is like a
A. Smooth and regular
B. Mirror
C. Thin film
D. None of these
8 If the slits in YDS experiment are made closer, fringe spacing will
A. Increase
B. Decrease
C. Remain same
D. None of these
9 Newton's rings are:
A. Concetric circles
B. spherical
C. None of these
D. Rectangular
10 If focal length of objective is increased
A. Magnifying power of compound microscope decreased
B. Magnifying power of astronomical telescope increases
C. The diameter of the objective lens
D. None of these

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