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

To find wavelength of light by his experiment. Newton utilized:

Question # 2

If the slits in YDS experiment are made closer, fringe spacing will:

Question # 3

If yellow light emitted by sodium lamp in Young's double slit experiment is replaced by blue light of the same intensity:

Question # 4

If the path difference must be an integral multiple of wavelength

Question # 5

The typical example/examples of optically active crystals

Question # 6

Which one of the following phenomena is not explained by Huygen's construction of wavefront?

Question # 7

The speed of light in other material is always

Question # 8

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 # 9

The astronomical telescope consists of objective and eye piece.The focal length of he objective is

Question # 10

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

Question # 11

At certain speed, the time taken by light in moving from M to m and back to M is equal to the time taken by

Question # 12

A plane wavefront is that which has source

Question # 13

The critical angle for a ray of light suffering total internal reflection will be smallest for the ray traveling from

Question # 14

Certain light of wavelength 600 nm is used to view an object under the microscope. If the aperture of its objective is 1.22 cm, then the limiting angle of resolution will be

Question # 15

The direction of a ray of light is.......to the wave front.

Question # 16

Wave length of red colour as compared to that of violet colour is:

Question # 17

The image formed by an eyepiece of compound microscope is

Question # 18

A prism splits a beam of white light into its seven constituent colors.This is so because

Question # 19

The phenomenon of polarization proves that the light waves are

Question # 20

The light waves and radio waves differ in

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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 yellow light emitted by sodium lamp in Young's double slit experiment is replaced by blue light of the same intensity:
A. Fringe width will decrease
B. Fringe width will increase
C. Fringe width will remain unchanged
D. Fringe will become less intense
2 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
3 Spectrometer can be used to
A. Measure wave length of light
B. Measure refractive index of the materials
C. Study spectra of light
D. All
4 Telescope is an optical device used for viewing
A. Near objects
B. Not far distance
C. Distant objects
D. b and c
5 Proportion of light in an optical fibre requires that the light-should be within the fibre
A. Very little confined
B. Largely confined
C. Totally confined
D. None of these
6 The medium in which speed of light is the same in all directions is called
A. non-homogeneous medium
B. homogeneous medium
C. both of them
D. empty medium
7 According to Huygen's principle:
A. Light travel in straight line
B. Light is a transvers wave
C. Light has dual nature
D. All point on the primary wavefront are the sources of secondary wavelets
8 The property of bending of light around obstacies is called
A. interference
B. reflection
C. diffraction
D. polarization
9 The dichronic substances are used in the process getting plane polarized light
A. Selective absorption
B. Refraction through crystals
C. Reflection from different surfaces
D. None of these
10 Sunset makes sky appears reddish because of:
A. Diffraction of sun rays
B. Refraction of light
C. Scattering of light from dust particles
D. Polarization of ligth

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