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

How is the image formed by a convex lens affected if the upper half of the lens is covered with a paper

Question # 2

The wavelength of X-rays is about

Question # 3

A line normal to the wavefront including the direction of motion is called

Question # 4

In Newton,s rings apparatus, we also use

Question # 5

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

Question # 6

If the focal of a convex lens is 5 cm then to get real and inverted image of the same size as that of object, the object should be placed at

Question # 7

The ability of an instrument of reveal the minor details of an object under examination is called

Question # 8

Most widely used optical fibres are those which propagate light by

Question # 9

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

Question # 10

A limited region taken on a wavefront which is far away form the source is

Question # 11

Newton's rings are formed due to

Question # 12

In Michelson's interferometer , the plates are placed in front of incident ray at an angle of:

Question # 13

A spherical wavefront is that which has

Question # 14

Successive dark and bright fringes are formed each time the moveable mirror in Michelsion's interferometer is moved a distance

Question # 15

Such type of fibre in which center core is of high refractive index and the layer over the central core is low refractive index is called

Question # 16

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

Question # 17

Huygen's principle is used to study the

Question # 18

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 # 19

If the bright fringe into be observed then we have relation

Question # 20

Diffraction of light occurs, due to the interference between rays coming from the same wavefront of

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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 To find wavelength of light by his experiment. Newton utilized:
A. Principle of phase change
B. Snell's Law
C. Bragg's law
D. Both (A) and (C)
2 Polaroid glass is used in sun glasses because
A. It is fashionable
B. It has good color
C. It is cheaper
D. It reduces the light intensity to half on account of polarization
3 Speed of light in vacuum is
A. 0 ms-1
B. 3 x 108ms-1
C. 1.5 x 108ms-1
D. None of these
4 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
5 When the light is incident on polarizing angle which of the following is completely polarized?
A. Reflected light
B. Refracted light
C. Both reflected and refracted light
D. Neither reflected nor refracted light
6 The property of bending of light around obstacies is called
A. interference
B. reflection
C. diffraction
D. polarization
7 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
8 The optical fibre has a layer over the central layer is called cladding of refractive index
A. High
B. Low
C. Very high
D. None of these
9 Refractive index of material depends upon
A. Nature of material
B. Wave length
C. Temperature
D. All of these
10 The points on a Huygen's wave front which sends out secondary wavelets are also
A. Source
B. Source of secondary wavelets
C. Coherent sources of light
D. None of these

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