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

The range of the diameter of core in multimode graded index fibre is

Question # 2

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

Question # 3

In which of the optical fibres, the propagation of light signal is through continuous refraction?

Question # 4

For total internal reflection to take place, the angle of incidence must be ______ than critical angle and the light should travel from ______ to ______ medium

Question # 5

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

Question # 6

To get three images of a single object,one should have two plane mirrors at an angle of

Question # 7

Inverse square law for luminance is valid for

Question # 8

Who gave the corpuscular nature of light

Question # 9

A planet is observed by an astronomical refracting telescope having an objective of focal length 16 m and an eyepiece of focal length 2 cm.

Question # 10

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

Question # 11

The ratio of fringes with for bright and dark fringes is

Question # 12

A point on the surface of the mirror where principle axis meets is called

Question # 13

Fringe spacing in YDS experiment will be maximum if we use

Question # 14

The cause of mirage observed in deserts in bright sunlight is due to:

Question # 15

Identify the incorrect statement

Question # 16

For constructive interference path difference should be

Question # 17

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 # 18

Layer of oil on water in sunlight appears coloured due to

Question # 19

Alexander graham bell transmits a voice message via a

Question # 20

A monochromatic source of light gives light of

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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 An oil surface floating on water surface exhibits beautiful colour patter, which is due to 
A. Reflection of light
B. Diffraction of light
C. Interference of light
D. None of these
2 Light signals in an optical fibre eventually become dim and must be regenerated by devices called
A. transmitters
B. receivers
C. photodiodes
D. none of them
3 An image formed by a concave lens is always
A. Virtual
B. Real
C. Inverted
D. None of these
4 X-rays interact with
A. solid crystal
B. atoms in the crystal
C. nuclei of atoms in the crystal
D. electrons of atoms in the crystal
5 A usual way to obtain a plane wave is to place point source of light at the focus of a
A. concave lens
B. convex lens
C. both of them
D. either of them
6 A double convex lens act as a diverging lens when the object is
A. Inside the focus
B. Between f and 2f
C. At the focus
D. At a large distance
7 X-ray crystallography can be used to get what information about the structure of a compound?
A. the bond angles in a molecules
B. the number of molecules per unit cell
C. a picture of the electron density in a unit
D. all of them
8 On a rainy day if there is an oil drop on tar road colored rings are seen around this drop This is because of
A. Interference pattern produced due to thin oil film
B. Diffraction pattern
C. Polarization
D. Total internal reflection of light
9 In young's slit experiment on interference the ratio of the intensities of a bright band and a dark band is 6 : 1 the ratio of the amplitudes o the interfering waves is
A. 16
B. 5/3
C. 4
D. 1/4
10 In a simple microscope if the final image is located at infinity then its magnifying power is
A. 25/f
B. 25
C. f/25
D. [1 + (25/f)]

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