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

Finger prints on paper are identified by sprinkling fluorescent powder on it and observing it under

Question # 2

The regular array of atoms in a crystal has spacing of the order of

Question # 3

When sunlight falls on a soap bubble (film), it appears coloured because of

Question # 4

The refractive index of a medium is defined as a ratio

Question # 5

According to Huygen's principle, the new position of the wavefront after a time can be found by constructing a surface that touches all the

Question # 6

When the light from two lamps falls on a screen, no interference pattern can be obtained. Why is this?

Question # 7

In the formulaαamino = 1.22λ/D, D denotes

Question # 8

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 # 9

If the moveable mirror in Michelsion's interferometer moves a distanceλ/2, the path difference changes by

Question # 10

The diffraction of light occurs, due to interference, of

Question # 11

The image of an object 5 mm length is only 1 cm high. The magnification of the lens is

Question # 12

A fly is sitting on the objective of a telescope pointed towards the moon.What effect is expected on the photography of the moon taken through the telescope?

Question # 13

The normal human eye can focus a sharp image of an object located anywhere form infinity to a certain point called

Question # 14

Michelesion's interferometer is an instrument usually used to measure

Question # 15

Newton's rings are:

Question # 16

The dichronic substances are used in the process getting plane polarized light

Question # 17

In diffraction grating has feature/features like

Question # 18

If we know the refractive index of glass, speed v of light in the glass can be found by

Question # 19

The resolving power of human eye is

Question # 20

Point out angle/angle at which the sin θ and tan θ have the same value

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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 Which of the following gives three regions of the electromagnetic spectrum in order of increasing wavelength?
A. Gamma rays,microwaves,visible radiation
B. Ultraviolet infra-red microwaves
C. Radio waves ultraviolet X-rays
D. Visible radiation gamma rays radio waves
2 A spectrometer is used to find
A. Wavelength of light
B. Refractive index of the prism
C. Angle of minimum deviation of prism
D. All of these
3 Sun has elliptical shape when it rises and sets due to
A. Refraction
B. Reflection
C. Scattering
D. Dispersion
4 Fringe spacing in YDS experiment will be maximum if we use:
A. Red light
B. Green light
C. Violet light
D. Blue light
5 The phase difference between two points on a wave front will be
A. 0°
B. 4π
C. 2π
D. π/2
6 The index of refraction of diamond is 2.0 velocity of light in diamond in m/s is
A. 6 x 108
B. 3 x 108
C. 2 x 108
D. 1.5 x 108
7 The organic substances which shows optical rotation when they are in solution
A. Tartaric acid
B. Sugar
C. Alcohol
D. a and b
8 The fringes produced in Young's double slit experiment will be wider if the distance between the two slits is
A. small
B. large
C. zero
D. very large
9 In the Newton's ring, as we proceed towards the periphery of the lens, the thickness of air film
A. gradually decreases
B. gradually increases
C. suddenly becomes zero
D. all of them
10 The magnifying power of a compound microscope can be increased if we use objective lens of
A. Large focal length
B. Small focal length
C. Same focal length
D. None of these

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