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

Light has:

Question # 2

Which one of the following waves cannot be polarized

Question # 3

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

Question # 4

Cladding in an optical fiber is used to

Question # 5

Multimode step index fibre has a core of relatively larger diameter such is

Question # 6

Michelson,s interferometer can be used to measure

Question # 7

Multimode step index fibre has diameter as

Question # 8

A compound microscope is consists of objective of

Question # 9

A simple astronomical telescope consists of

Question # 10

If the angle of refraction is 90o, for which the angle of incidence is called

Question # 11

The waves propagate in space by the motion of the

Question # 12

In a simple microscope if the final image is located at infinity then its magnifying power is

Question # 13

The minimum distance between an object and its image in a convex lens is

Question # 14

In case of point source of light, shape of wavefront is:

Question # 15

Multimode graded index fibre core has diameter of

Question # 16

Huygen's theory cannot explain:

Question # 17

The conversion of electrical signals into light signals taken place due to

Question # 18

If a light of λ = 588 nm falls on half silvered glass plate in Michelson s interferometer if movable mirror is moved through 0.233 mm the number of fringes will be observed to shift

Question # 19

At points where the crest (or trough) of one wave coincides with the crest (or trough) of the other wave, the wave produces

Question # 20

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

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MCAT Physics Chapter 7 Important MCQ's

Sr.# Question Answer
1 A diffraction grating contains 5000 lines per centimeter, its grating element will be
A. 1 x 10-4nm
B. 1 x 10-14m
C. 1 x 10-14cm
D. 1 x 10-4cm
2 When a movable mirror moves λ/4 distance and the light used is 400 nm, then the distance measured highly precise is
A. 100 nm
B. 10-4 nm
C. 10-6 nm
D. 10-5 mm
3 The terms phase difference and path difference are:
A. Same
B. Different
C. Equal
D. None of these
4 Cladding means a layer of ______ refractive index over the central core of ______ refractive index
A. Lower, lower
B. Higher, lower
C. Lower, higher
D. None of these
5 A fibre optic communication system consists of
A. one major component
B. two major components
C. three major components
D. four major components
6 In YDS experiment, fringe spacing means the distance between two consecutive_____fringes:
A. Bright
B. Dark
C. Any of A or B
D. None of these
7 The appearance of colours in the shape (or oil) film results from:
A. Dispersion
B. Interference
C. Reflection
D. Refraction
8 The optical resolution of microscope or a telescope tells us how close together, the two point sources of light can be so that they are still seen as two separate sources
A. Angular magnification
B. Resolution
C. Magnification
D. None of these
9 A glass plate on which a large number of very fine equidistant parallel lines are drawn is called
A. convex lens
B. thin film
C. diffraction grating
D. interferometer
10 In spectrometer the function of collimator is to produce
A. Diverging beam of light
B. Converging beam of light
C. Parallel beam of light
D. None of these

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