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

When light passes through a tourmaline crystal, it becomes

Question # 2

Cladding in an optical fiber is used to

Question # 3

Michelson's interferometer is an instrument that is capable of measuring distance with

Question # 4

The diffraction is found to be prominent when the wavelength of light is

Question # 5

If the magnification M1 = 20.0 for objective and M2 = 12.0 then total magnification is

Question # 6

The image of an object 5 mm length is only 1 cm high. The magnification of the lens is

Question # 7

In single slit diffraction the condition for second minimum is

Question # 8

X-rays interact with

Question # 9

Wave front is the locus or all points in vibration are in the same

Question # 10

If the incident light contains different wavelengths the images of each wavelength for a certain value is diffracted in the

Question # 11

The path difference involved in interference in thin films depends upon

Question # 12

Newton's rings are:

Question # 13

If the plane polarized light is incident on the second sheet of Polaroid, no light is emitted when their axes are

Question # 14

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

Question # 15

If a lens is cut into two piece perpendicular to the principal axis and only part is used the intensity of the image:

Question # 16

While viewing a distant object with a telescope suddenly a housefly sits on objective lens.The correct statement is that

Question # 17

At the point of contact of the lens and the glass plate, the incident and reflected rays interfere

Question # 18

If the moveable mirror in Michelsion's interferometer moves a distanceλ/2, the path difference changes by

Question # 19

The cause of power loss in optic fibre is

Question # 20

Commercial polarizing material 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 Consider telecommunication through optical fibers.Which of the following statements is not true?
A. Optical fibers may have homogeneous core with a suitable cladding
B. Optical fibers can be of graded refractive index
C. Optical fibers are subject to electromagnetic interference from outside
D. Optical fibers have extremely low transmission loss
2 The light signals are sent from the source
A. A ordinary source
B. A monochromatic light source
C. A moulticolour source
D. None of these
3 If 'd' 'm' and fringe spacing ΔY are known, the interference effect due to light of λ
A. Cannot be determine
B. Can be determined in same cases
C. Can be determined
D. None of these
4 Multi-mode step index fibre index fibre is used to send
A. white light
B. green light
C. a strong monochromatic light
D. yellow light
5 One angstrom equal:
A. 10-8m
B. 10-9m
C. 10-10m
D. 10-11m
6 How the fringe spacing varies as the separation of the slits increases
A. Increases
B. Decreases
C. Increases very little
D. None of these
7 A pulse of light in the optical fibres represents the number
A. 0
B. 1
C. 2
D. 3
8 For the normal setting of a telescope
A. Only the object is at infinity
B. Only the final image is at infinity
C. Both the object and the final image is at infinity
D. Neither the object nor the final image has to be at infinity
9 In order to observe interference , the interfering beams must be
A. monochromatic
B. coherent
C. either of them
D. both of them
10 Polaroid glass is used in sun glasses because
A. It is fashionable
B. It has good color
C. It is cheaper
D. It reduces the light intensity to half on account of polarization

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