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 spacing between lines of diffraction grating is

Question # 2

A line normal to the wave front is called

Question # 3

Which of the following properties show light is transverse wave in nature?

Question # 4

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

Question # 5

In Young s double slit experiment if we use white light then

Question # 6

The phenomenon of diffraction also contains the phenomenon of

Question # 7

Inverse square law for luminance is valid for

Question # 8

In an astronomical telescope is the objective has the focal length fo is

Question # 9

Ray optics is valid,when characteristic dimensions are

Question # 10

Fraunhofer spectrum is a

Question # 11

The fiber of which refractive index ______ gradually as move from central core to its periphery is called ______ index fiber

Question # 12

In Young's double slit experiment,the separation between the slits is made 3 fold the fringe width becomes

Question # 13

Wavelength of light of frequency 100 Hz is

Question # 14

A beam of light enters air from water.Which of the following characteristics of light will not change in water

Question # 15

The time taken by the mirror M to rotate through an angle 2π/8 is

Question # 16

Ultra-violet rays differ from X-rays in that ultra - violet rays

Question # 17

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

Question # 18

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

Question # 19

Ordinary light has components of vibration in

Question # 20

A mode of propagation of light through optical fibre in which the light within the fibre is

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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 The absence of light in the optical fibres represents the number
A. 0
B. 1
C. 2
D. -1
2 In Newton,s rings apparatus, we also use
A. Spectroscope
B. Telescope
C. Microscope
D. Turn table
3 Confining the light vibrations in one plane is called:
A. Reflection of light
B. Interference of light
C. Polarization of light
D. Diffraction of light
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 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
6 The contrast in the fringes in an interference pattern depends upon
A. Fringe width
B. Relative intensities of the two sources
C. Distance between the slits
D. Wavelength
7 Choose the correct statement
A. Rays are normal to wave front
B. Rays may be normal to wave front
C. Rays are not normal to wave front
D. There is no relationship between rays and wave fronts
8 A usual way to obtain a plane wave is to place point source of light at the focus of a
A. concave lens
B. convex lens
C. both of them
D. either of them
9 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
A. 795
B. 792
C. 786
D. None
10 The position of a new wavefront after a certain interval of time can be found by constructing a surface that is
A. A tangent
B. A tangent envelope
C. Curved surface
D. None of these

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