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

In the study of interference and diffraction, we consider

Question # 2

Why laser rays are used to measure long distance?

Question # 3

In YDS experiment, fringe spacing means the distance between two consecutive_____fringes:

Question # 4

Which one of the following phenomena is not explained by Huygen's construction of wavefront?

Question # 5

In an optical fibre the speed of light is

Question # 6

The image of the tip of a needle is never sharp because of

Question # 7

A monochromatic source of light gives light of

Question # 8

The polarized can be achieved by using process like

Question # 9

Proportion of light in an optical fibre requires that the light-should be within the fibre

Question # 10

Two wave of intensities I an 4I superpose then the maximum and minimum intensities are

Question # 11

Optically active substance are those substance which

Question # 12

The concentration in solution can be determined by the property known as

Question # 13

In newton's rings apparatus, we also use:

Question # 14

The information received at the other end of a fibre can be inaccurate due to

Question # 15

Inspite of different dispersion, all the wavelengths arrive at the other end of the fibre at the same time. With a step-index fibre overall time difference may be about

Question # 16

Optic fibers are related with

Question # 17

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

Question # 18

In multimode graded index fibre core and cladding has boundary

Question # 19

In electromagnetic waves electric and magnetic field ar

Question # 20

The light source in the transmitter can be

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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 characteristics of wave, established the Huygen's wave theory in 1801?
A. polarization
B. interference
C. propagation
D. all of them
2 The speed of light in vacuum or in air is
A. 3 x 1010 m ! s
B. 3 x 109 m ! s
C. 3 x 108 m ! s
D. 3 x 107 m ! s
3 In Michelsons interference the movable mirror is moved and a shift of two fringes is observed then the distance moved by the mirror is
A. λ/2
B. λ
C. 2λ
D. None
4 Which one of the following phenomenon cannot be explained by the wave theory of light ?
A. Reflection
B. Refraction
C. Photoelectric effect
D. Diffraction
5 The colour of light is determined by is
A. Wavelength
B. Frequency
C. Velocity
D. Amplitude
6 Which of the following phenomenon cannot take place if we consider light as longitudinal wave?
A. diffraction
B. interference
C. polarization
D. reflection
7 If we know the refractive index of glass, speed v of light in the glass can be found by
A. v = c n
B. v = c/n
C. v = n/c
D. None of these
8 Zero order image formed by the grating when the angle the along the direction of normal to grating is
A. Zero
B. 90o
C. 180o
D. None of these
9 As the object is brought from a far off point to he focus, the magnification goes on
A. Increasing
B. Decreasing
C. Do not change
D. None of these
10 The lower refractive index the fibre core has
A. 1.48
B. 1.40
C. 1.54
D. 1.42

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