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

The colour of light is determined by is

Question # 2

The typical wavelength of the signal which we sent in the optical fibre is

Question # 3

Ordinary light has components of vibrations in

Question # 4

Polaroids are used in

Question # 5

In which mode, the refractive index steps down form 1.52 to 1.48 at the boundary with the cladding?

Question # 6

Light waves are

Question # 7

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

Question # 8

The critical angle for a ray of light suffering total internal reflection will be smallest for the ray traveling from

Question # 9

The ultra-purity of optical fibre is

Question # 10

According to the relation for constructive destructive interference, the point of contact has zero thickness of air so it should have

Question # 11

In Micheal sons interfrometes apparatus the numbers of mirrors and glas plates are used respectively ara

Question # 12

The velocity of light in vacuum can be changed by changing:

Question # 13

The relation for the diffraction pattern, when it is minimum

Question # 14

In case of constructive interference of two waves, the amplitude of the resultant wave is_____either of the waves:

Question # 15

When light travels from one medium to another which are separated by a sharp boundary the characteristic which does not change is

Question # 16

Which of the following is the most common method to obtain polarized light?

Question # 17

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?

Question # 18

The relation between displacement of the mirror 'L' and wavelength λ of the light used

Question # 19

Optic fibers are related with

Question # 20

In Bragg's Equation 2d sin θ = nλ, where 'n' 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 In an astronomical telescope the eye piece has the focal length fe if
A. Short
B. Long
C. Extremely long
D. None of these
2 In Young s experiment the distance between two adjacent fringes for blue light is than that for green light
A. Lesser
B. Greater
C. Equal
D. Lesser if distance between source and screen is large
3 A spectrometer is an optical device used to study the spectra from different sources of light which is
A. Absorption spectra
B. Emission spectra 
C. Discrete spectra
D. None of these
4 When a light signal travels along the length of the optical fibre, the power lost by it is due to
A. Reflection
B. Refraction
C. Seattering and absorption
D. Diffraction
5 The speed of light in a medium of refractive index 1.5 is
A. 3 x 108ms-1
B. 4.5 x 108ms-1
C. 2.0 x 108ms-1
D. None of these
6 A compound microscopes consists of objective of
A. Very short focal length
B. Large focal length
C. Very large focal length
D. None of these
7 Electromagnetic waves transport:
A. Energy only
B. Momentum
C. Both A and B are correct
D. None is correct
8 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
A. 11.2o
B. 14.2o
C. 15.4o
D. 13.6o
9 In Young s double slit experiment if we use white light then
A. Colored fringes will be observed
B. Bright fringes will be observed
C. Alternate dark and bright fringes will be observed
D. No interference fringes will be seen
10 The range of the diameter of core in multimode graded index fibre is
A. 50 to 100 μm
B. 50 to 1000 μm
C. 50 to 1000 μm
D. None of these

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