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

A usual way to obtain a plane wave is to place point source of light at the focus of a

Question # 2

In Michelsion's interferometer the path difference is varied by moving

Question # 3

When a ray of light goes from a denser medium into a rare medium

Question # 4

Sunlight is also partially polarized because of Earth's atmosphere due to scattering by

Question # 5

In Newton,s rings apparatus, we also use

Question # 6

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

Question # 7

Which of the following is an optically active material

Question # 8

The minimum distance between a source and the screen for which a real image is possible with a convex lens is

Question # 9

Fraunhofer's lines commonly visible in the sun's spectrum are examples of

Question # 10

The fine rulings on a compact disc as a diffraction grating but each line is wide like

Question # 11

Fringe spacing in YDS experiment will be maximum if we use

Question # 12

The wavelength of light is 6000°A, the number of waves continued in 0.01 m distance will be

Question # 13

In an astronomical telescope is the objective has the focal length fo is

Question # 14

The speed of light in vacuum is 3 x 108 ms-1.Its speed in a medium of refractive index 1.5 will be

Question # 15

Wavelength of X-rays falling at a glancing angle of 30° on a crystal with atomic spacing 2 x 10-10m for first order diffraction is

Question # 16

In spectrometer the function of collimator is to produce

Question # 17

A fiber of 50μm diameter capable of carrying white light at ______ distances is called ______ index fiber

Question # 18

The distance between the top adjacent slits on diffraction grating is called

Question # 19

In the formulaαamino = 1.22λ/D, D denotes

Question # 20

When the source of light is at very large distance, the shape of wavefront is:

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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 does not show polarization?
A. Longitudinal waves in gas
B. Transverse wave in gas
C. Both A and B
D. None of these
2 The optical resolution of microscope or a telescope tells us how close together, the two point sources of light can be so that they are still seen as two separate sources
A. Angular magnification
B. Resolution
C. Magnification
D. None of these
3 Multimode step index fibre has a core of relatively larger diameter such is
A. 125 μm
B. 175 μm
C. 50 μm
D. 100 μm
4 An optical fibre with its protective case may be typically 6.0 mm in diameter and yet it can replace bundle of copper of diameter
A. 6.79 cm
B. 6.95 cm
C. 7.52 cm
D. 7.62 cm
5 If plane polarized light is incident on the second sheet of Polaroid, the light emitted is full light when their axes are
A. Parallel to each other
B. Perpendicular to each other
C. In between two positions
D. None of these
6 The principle of Michelson's interferometers is
A. Refraction
B. Dispersion
C. Interference
D. Reflection
7 Which of the following colors suffers maximum deviation in a prism?
A. Yellow
B. Blue
C. Green
D. Orange
8 The most common method to obtain plane polarized light by using dichoric substance is:
A. Selective absorption
B. Reflection from different surfaces
C. Refraction from different surfaces
D. Scattering
9 By which principle we can locate the position of new wavefront after a later time?
A. principle of irreversibility
B. principle of light
C. Archimedes principle
D. Huygen's principle
10 Which electromagnetic wave would cause the most significant diffraction effect for an atomic lattice of spacing around 10-10m?
A. microwave
B. infrared
C. ultraviolet
D. X-ray

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