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

  • Total Questions20

  • Time Allowed20

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MDCAT Physics Chapter 7 Light Online Test

00:00
Question # 1

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 # 2

For constructive interference the path difference is

Question # 3

When an image is placed at the focal length of the eye piece, the final image formed at

Question # 4

To observe the phenomenon of interference of light, the light should be

Question # 5

The final image obtained by astronomical telescope is

Question # 6

In case of destructive interference of two waves, the amplitude of the resultant wave will be_______either of the waves:

Question # 7

By which principle we can locate the position of new wavefront after a later time?

Question # 8

The minimum distance between an object and its image in a convex lens is

Question # 9

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

Question # 10

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

Question # 11

When a plane polarized light is passed through certain crystals they

Question # 12

Confining the light vibrations in one plane is called:

Question # 13

Which of the following colors will have minimum critical angle when light passes from glass to air

Question # 14

To get high resolving power for a telescope one should use

Question # 15

The absence of light in the optical fibres represents the number

Question # 16

Due to dispersion effects, white light source is useful for

Question # 17

The principle of Michelson's interferometers is

Question # 18

A material having high refractive index has

Question # 19

The power loss can also take place due to

Question # 20

Light of wavelength 800 n m is incident on a pair of slits, forming fringes 4.0 mm apart on a screen. What is the fringe when light of 400 nm is used and the slit separation is halved?

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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 Least distance of distinct vision
A. Decrease with increasing age
B. Increases with increasing age
C. Does not vary with age
D. May increase or decrease with age
2 How many types of the optical fibres are
A. One
B. Two
C. Three
D. Four
3 The distance between the top adjacent slits on diffraction grating is called
A. element
B. grating element
C. aperture
D. slit
4 The scattering of X-rays from atoms in a crystalline lattice gives rise to
A. Interference
B. Diffraction
C. Reflection
D. None of these
5 The regular array of atoms in a crystal forms a natural diffraction grating of spacing typically
A. ≈ 10-10 m
B. ≈ 10-12 m
C. ≈ 10-8 m
D. ≈ 10-9 m
6 In Michelsion's interferometer the path difference is varied by moving
A. compensatory plate
B. moveable mirror
C. fixed mirror
D. telescope
7 The blue color of sky is due to:
A. Dispersion
B. Diffraction
C. Polarization
D. Scattering
8 When the source of light is at very large distance, the shape of wavefront is:
A. Spherical
B. Cylindrical
C. Plane
D. None of these
9 The diffraction grating is used to determine
A. Intensity of light
B. Wavelength of light
C. Refractive index of prism
D. None of these
10 If the distance of a surface from light source is doubled,then the luminance will become
A. 1/4 times
B. 1/2 times
C. 2 times
D. 4 times

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