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

  • Total Questions20

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MDCAT Physics Chapter 7 Light Online Test

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Question # 1

Let a ray of light enters from air into two media of different refractive indices. The speed of light will be ______ to refractive index

Question # 2

When refractive index of core is 1.50 and of 1.48 of cadding then find the angle of entry for an optical fibre is

Question # 3

The fiber of which refractive index ______ gradually as move from central core to its periphery is called ______ index fiber

Question # 4

Single mode step index fibre has

Question # 5

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 # 6

Which of the following is not an advantages of using optical fibres over copper cables?

Question # 7

A material having high refractive index has

Question # 8

For constructive interference the path difference is

Question # 9

Spherical aberration can be reduced by using

Question # 10

The light source used in multimode step index fibre is

Question # 11

A spectrometer is an optical device used to study the spectra from different sources of light which is

Question # 12

The diffraction of light occurs, due to interference, of

Question # 13

Two layers optical fibre in which central layer is called core which has refractive index

Question # 14

Multimode graded index fibre core has diameter of

Question # 15

The idea of Michelsion's interferometer is based on the

Question # 16

The distance between the two adjacent slits is called

Question # 17

A telescope is rotatable about the same vertical axis as the turntable, with a scale which is

Question # 18

Maximum detail of object can be seen from a microscope wen light used is of

Question # 19

Huygen's wave theory of light cannot explain

Question # 20

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

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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 The medium in which speed of light is the same in all directions is called:
A. Homogeneous
B. Heterogeneous
C. Non-homogeneous
D. Free space
2 Photo phone was invented by
A. Edison
B. Graham Bell
C. Bardeen
D. None of these
3 A spherical wavefront is that which has
A. A source
B. A point source
C. An extended source
D. None of these
4 Which does not show polarization
A. Longitudinal wave in gas
B. Transverse wave in gas
C. Both a and b
D. None of these
5 The angle with the horizontal at which an underwater swimmer will see the setting sun is
A. 91°
B. 32°
C. 49°
D. 69°
6 The speed of light in a medium depends upon
A. Its wavelength
B. Its frequency
C. Refractive index
D. All of these
7 The property of bending of light around the obstacle is known is
A. Interference
B. Polarization
C. Diffraction
D. None of these
8 A simple astronomical telescope consists of
A. Two convex lenses
B. Three convex and one cocave
C. Two concave lens
D. None of these
9 The ratio of fringes with for bright and dark fringes is
A. 1 : 2
B. 2 : 1
C. 1 : 4
D. 1 : 1
10 If tube length of astronomical telescope is 105 cm and magnifying power is 20 for normal setting calculate the focal length of objective
A. 100 cm
B. 10 cm
C. 20 cm
D. 25 cm

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