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

The laser light used in an optical fiber system has a wavelength equal to

Question # 2

Which of the following types of optical fibre has a very thin core of about 5μm diameter and has a relatively large cladding?

Question # 3

The speed of the secondary wavelets as mentioned in Huygen's principle is ________ the speed of propagation of the wave itself

Question # 4

YDS experiment can be used to determine:

Question # 5

In Young s double slit experiment the separation between the slits in halved and the distance between the slits and the screen is doubled the fringe with will

Question # 6

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

Question # 7

A convex lens has focal length F.An object is placed at P then

Question # 8

Using monochromatic light, interference fringes are produced on a screen placed a distance D from a pair of slits of separation a.
The separation of the fringes is X.
a is now halved and D is increased by a factor of 4.
What is the new fringe separation?

Question # 9

All of the following statements are correct except

Question # 10

The contrast in the fringes in an interference pattern depends upon

Question # 11

Speed of light in vacuum depends upon:

Question # 12

If the magnification M1 = 20.0 for objective and M2 = 12.0 then total magnification is

Question # 13

The speed of light in vacuum or in air is

Question # 14

The multi-mode step index optical fibre, the central core has

Question # 15

When light signal travels along fibres, the power losses are mainly due to

Question # 16

The ratio of diameters of two convex lenses is ______ the ratio of their focal lengths

Question # 17

The materials which are used in selective absorption method to polarize the light are

Question # 18

The wave nature of light was first proposed by

Question # 19

The distance between two concentric wave fronts is

Question # 20

A plane wavefront is that which has source

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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 Inverse square law for luminace is valid for
A. Search light
B. Isotropic point source
C. Cylindrical source
D. All types of source
2 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
3 Magnification of a convex lens is
A. M = p/d
B. M = p/q
C. M = q/p
D. None of these
4 Consider telecommunication through optical fibers.Which of the following statements is not true?
A. Optical fibers may have homogeneous core with a suitable cladding
B. Optical fibers can be of graded refractive index
C. Optical fibers are subject to electromagnetic interference from outside
D. Optical fibers have extremely low transmission loss
5 A compound microscopes consists of objective of
A. Very short focal length
B. Large focal length
C. Very large focal length
D. None of these
6 In multi-mode step index optical fibre, that layer is called cladding which has
A. higher refractive index
B. lower refractive index
C. both of them
D. none of them
7 The resolving power of human eye is
A. 1° 
B. 2°
C. 3°
D. 6°
8 A tourmaline crystal is being used as an analyzer In one complete rotation of the crystal the number of excitation will be
A. 0
B. 1
C. 2
D. 4
9 With tremendous information carrying capacity is called
A. Data entry
B. Band width
C. Word processing
D. None of these
10 Turn table is the plateform over which we place
A. Diffraction grating
B. Prism
C. Glass slab
D. a and b

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