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

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MDCAT Physics Chapter 7 Light Online Test

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Question # 1

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

Question # 2

How many major components of fibre optic communication system are

Question # 3

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

Question # 4

According to Huygen,every point on a wavefront may be regarded as a.........of secondary wavelets.

Question # 5

The central point in the Newton's rings is dark due to

Question # 6

The optical fibre is covered for protection with

Question # 7

Conditions for interference are that the two sources should be coherent and:

Question # 8

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 # 9

Magnification of a convex lens is

Question # 10

Star twinkle due to

Question # 11

If the distance of a surface from light source is doubled,then the luminance will become

Question # 12

One angshom is equal to?

Question # 13

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

Question # 14

Two sources of waves are called coherent if

Question # 15

According to the Huygen's principle, the secondary wavelets propagate in the forward direction with a speed equal to

Question # 16

Repeaters are the devices which regenerate the signals and are placed at about

Question # 17

In the relations d sinθ = nλ, shows that the value of θ depends upon 'n' so the images of different colours are much separated in

Question # 18

On a rainy day if there is an oil drop on tar road colored rings are seen around this drop This is because of

Question # 19

Just before  setting the sun may appear to be elliptical This happens due to

Question # 20

Multimode step index fibre is useful for

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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 How many fringes will pass a reference point if the moveable mirror of a Michelson s interferometer is moved 0.06 mm The wavelength of light used is 5.89 x10-3 mm
A. 200
B. 300
C. 20.4
D. 2.3
2 Which of the following atoms cannot be detected by X-ray crystallography?
A. carbon
B. nitrogen
C. hydrogen
D. neon
3 If yellow light emitted by sodium lamp in Young's double slit experiment is replaced by blue light of the same intensity:
A. Fringe width will decrease
B. Fringe width will increase
C. Fringe width will remain unchanged
D. Fringe will become less intense
4 Which light travels faster in optical fibres?
A. visible light
B. ultraviolet
C. infra-red
D. any one of them
5 An object is placed between the focus and the optical center of the convex lens. The image formed is
A. Real, erect and magnified
B. Virtual, inverted and magnified
C. Virtual, erect and diminished
D. Virtual, erect and magnified
6 Michelsion devised the Michelson's interferometer in
A. 1981
B. 1891
C. 1851
D. 1881
7 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
8 Plane polarized light can be produced by:
A. Simple reflection
B. Refraction
C. Selective absorption
D. All of these
9 Spherical aberration can be reduced by using
A. Convex lens
B. All the portions of the lens
C. Central portion of the lens
D. Upper portion of the lens
10 Two monochromatic radiations X and Y are incident normally on a diffraction grating.The second order intensity maximum for X coincides with the third order intensity maximum for Y what is the ratio wavelength of X/wavelength of Y?
A. 1/2
B. 2/3
C. 3/2
D. 2/1

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