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

00:00
Question # 1

The distance between the centres of two consecutive bright fringes (or dark fringes) is called

Question # 2

According to WH Bragg and WL Bragg monochromatic beam of X-rays was reflected form a crystal plane is like a

Question # 3

In case of a point source, the shape of the wavefront is

Question # 4

Choose the correct statement

Question # 5

Spherical aberration can be reduced by using

Question # 6

Sky seems blue due to

Question # 7

With a graded index fibre, the overall time difference between all the wavelengths arrived at the other end may be about

Question # 8

The scattering of X-rays from atoms in a crystalline lattice gives rise to

Question # 9

Michelson's interferometer is an instrument that is capable of measuring distance with

Question # 10

The waves propagate in space by the motion of the

Question # 11

Due to Plano convex lens and the plane glass plate the thickness of air film changes from the center to outward

Question # 12

Light appears to travels in straight lines since

Question # 13

At what distance should a book be placed from a 50 Cd bulb so that the luminance on the book becomes 2 Im m-2

Question # 14

If plane polarized light is incident on the second sheet of Polaroid, the light emitted is full light when their axes are

Question # 15

When the light is incident on polarizing angle which of the following is completely polarized?

Question # 16

A compound microscope is consists of objective of

Question # 17

Polaroid glass is used in sun glasses because

Question # 18

To get high resolving power for a telescope one should use

Question # 19

The optical fibre is covered for protection with

Question # 20

Longitudinal waves do not exhibit

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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 If 5000 lines/cm are ruled on a diffraction grating, the element is:
A. 5 x 10-5m
B. 2 x 10-6m
C. 5 x 10-6m
D. 2 x 10-5m
2 There will be no change in _______ of light entering glass
A. Velocity
B. Frequency
C. Direction
D. Wavelength
3 When a mirror of a Michelsion's interferometor is moved a distance of 0.5 mm, 2000 fringes are observed, the wavelength of the light used is
A. 5000 mm
B. 5000°A
C. 500 cm
D. 2000°A
4 In digital modulation, the LED or laser flashed on and off at a
A. Fast rate
B. Very fast rate
C. Extremely fast rate
D. None of these
5 The fine rulings on a compact disc as a diffraction grating but each line is wide like
A. 0.01 μm
B. 0.5 μm
C. 0.05 μm
D. 0.6 μm
6 A fibre optic communication system consists of
A. one major component
B. two major components
C. three major components
D. four major components
7 The resolution of microscope depends on objective's
A. Focal length
B. Material
C. Diameter
D. None of these
8 Wavelength of X-rays falling at a glancing angle of 30° on a crystal with atomic spacing 2 x 10-10m for first order diffraction is
A. 4 x 10-10m
B. 2 x 10-10m
C. 0.2 x 10-10m
D. 20 x 10-10m
9 The central point in the Newton's rings is dark due to
A. Destructive interference
B. Constructive interference
C. Additional of path difference λ/2
D. b and c
10 The typical wavelength of the signal which we sent in the optical fibre is
A. 1000 nm
B. 100 m
C. 1.3 mn
D. 1.3μm

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