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

In case of reflection of ray within a denser medium, angle of incidnet is ______ -angle of reflection

Question # 2

If f = 5 cm and d = 25 cm then the magnification will be

Question # 3

In Newton,s rings apparatus, we also use

Question # 4

The object is placed at the principle focus of a simple microscope if the focal length of the lens is 2cm what is the magnifying power of the microscope

Question # 5

The cause of mirage observed in desert is

Question # 6

Electromagnetic waves from a source were found to be significantly diffracted when passing through gaps of the order of 10 m. What type of waves are they likely to be?

Question # 7

Huygen's principle is used to study the

Question # 8

A spectrometer is used to find

Question # 9

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

Question # 10

Focal length of convex lens is maximum for

Question # 11

The angle with the horizontal at which an underwater swimmer will see the setting sun is

Question # 12

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

Question # 13

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

Question # 14

Spherical aberration can be reduced by using

Question # 15

When a movable mirror moves λ/4 distance and the light used is 400 nm, then the distance measured highly precise is

Question # 16

In Michelson interferometer if the moveable mirror is moved through a distance of 8λ then the number of fringes shifted are

Question # 17

If N is the number of rulings on the grating, then the resolving power in the mth order diffraction equals to

Question # 18

In Young's double slit experiment for the interference of light, the central region of the fringe system is

Question # 19

When crest of one wave falls on the crest of the other wave. This phenomenon is known as:

Question # 20

If 'd' 'm' and fringe spacing ΔY are known, the interference effect due to light of λ

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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 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
2 If N is the number of rulings on the grating, then the resolving power in the mth order diffraction equals to
A. R = N × m
B. R = N/m
C. R = m/N
D. R = N × m2
3 Ray optics is valid,when characteristic dimensions are
A. Of the same order as the wavelength of light
B. Much smaller than the wavelength of length
C. Of the order of one millimeter
D. Much larger than the wavelength or light
4 If light of low wavelength is used in Young's double slit experiment then width of the fine will
A. Decreases
B. Increase
C. Not fixed
D. No change
5 A compound microscope is consists of objective of
A. Long focal length and short focal length of eye piece
B. Objective of very short focal length and eye piece of long focal length
C. Objective of very short focal length end eye piece of also short focal length
D. None of these
6 Which one of the following is nearly monochromatic
A. Light from candle
B. Light from simple lamp
C. Light from sodium lamp
D. Light from sun
7 In Young's double slit experiment fringe width (or fringe spacing) depends
A. inversely on wavelength
B. directly on wavelength
C. directly on square of wavelength
D. inversely on square of wavelength
8 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
9 If the slits in YDS experiment are made closer, fringe spacing will:
A. Increase
B. Decrease
C. Remain same
D. None of above
10 If the bright fringe into be observed then we have relation
A. Y = mLd/λ
B. Y = mλL/d
C. Y = λd/mL
D. Y = λL/md

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