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

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MDCAT Physics Chapter 7 Light Online Test

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Question # 1

Power of a lens is equal to

Question # 2

If a source of light is moving away from stationary observer then frequency of light wave appears to change because of

Question # 3

Mirage is a phenomenon due to

Question # 4

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

Question # 5

Inverse square law for luminace is valid for

Question # 6

The diffraction grating is used to measure

Question # 7

A completely transparent material will be invisible in vacuum when the refractive index n is

Question # 8

Cladding means a layer of ______ refractive index over the central core of ______ refractive index

Question # 9

In YDS experiment, data given isλ= 500 nm, L = 100 cm,Δy comes out to be

Question # 10

Basic principle of an optical fibre is

Question # 11

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 # 12

With tremendous information carrying capacity is called

Question # 13

Maximum number of orders available with a grating is ______ grating element

Question # 14

Refractive index of material depends upon

Question # 15

Michelson interferometer is based upon

Question # 16

Experimental demonstration of wave nature of light was given in 1801 by

Question # 17

According to Young s experiment the distance between two adjacent bright fringes of blue light is _____ than for oranges light

Question # 18

If λ = 589 nm   d=1.0 mm  L=225 cm then fringe spacing ΔY is given by  

Question # 19

In Michelsion's interoferometer, if the moveable mirror is moved through a distance 0.05 mm and 500 finges are observed, then the wavelength of light used is

Question # 20

An oil surface floating on water surface exhibits beautiful colour patter, which is due to 

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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 Michelesion's interferometer is an instrument usually used to measure
A. intensity of light
B. speed of light
C. wavelength of light
D. dispersion of light
2 In order to observe interference , the interfering beams must be
A. monochromatic
B. coherent
C. either of them
D. both of them
3 In newton's rings apparatus, we also use:
A. Spectroscope
B. Telescope
C. Microscope
D. Any of these
4 For a system to transmit thousands of telephones conversations, several television programs and numerous data signals, it need the following number so threads of optical fibre
A. 100 to 200
B. 1000 to 10000
C. 100 to 1000
D. 1 or 2
5 Which does not show polarization
A. Longitudinal wave in gas
B. Transverse wave in gas
C. Both a and b
D. None of these
6 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
7 In Michelsons interference the movable mirror is moved and a shift of two fringes is observed then the distance moved by the mirror is
A. λ/2
B. λ
C. 2λ
D. None
8 If 5000 lines/cm are ruled on a diffraction grating, the element is:
A. 5 x 10-5m
B. 2 x 10-6m
C. 5 x 10-6m
D. 2 x 10-5m
9 If λ = 589 nm   d=1.0 mm  L=225 cm then fringe spacing ΔY is given by  
A. 1.76 mm
B. 1.80 mm
C. 1.37 mm
D. 1.33 mm
10 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

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