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 light signal in graded index fibre is totally confined due to

Question # 2

A simple telescope is consists of

Question # 3

Newton's rings are formed as a result of

Question # 4

In case of point source of light, shape of wavefront is:

Question # 5

The plane of polarization is rotated many degrees when a thickness of such crystal is

Question # 6

The waves produced in a stretched string are called

Question # 7

The final image obtained by astronomical telescope is

Question # 8

Angle subtended by any side of the eight-sided mirror at the center is

Question # 9

The different parts of spectrometer

Question # 10

If 5000 lines/cm are ruled on a diffraction grating, the element is:

Question # 11

If f = 5 cm and d = 25 cm then the magnification will be

Question # 12

Polaroid glass is used in sun glasses because

Question # 13

A beam of light enters air from water.Which of the following characteristics of light will not change in water

Question # 14

In YDS experiment, the condition for constructive interference of two coherent waves is that the path difference should be

Question # 15

In thin film colours are due to

Question # 16

A plane wavefront is that which has source

Question # 17

The wavelength of refractive wave in a denser medium is

Question # 18

If the vibrations of the light wave are confined to one plane only, then this light is called

Question # 19

The Plano-convex lens used in the Newton's rings are of focal length

Question # 20

When the object lies between F and 2F the image formed by a convex lens 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 Single mode step index fibre has
A. Thick core and large cladding
B. Thick core and shorter cladding
C. Thin core and shorter cladding
D. Thin core and larger cladding
2 The optical fibre is covered for protection with
A. rubber jacket
B. plastic jacket
C. steel jacket
D. copper jacket
3 Given that grating element = 0.2 x 10-3cm in case of a diffraction grating. Then number of lines per centimeter will be
A. 500000
B. 5000
C. 50
D. 5
4 The function of compensator plate in interferometer is to
A. Interfere properly
B. To equalize the distance of M1 and M2
C. Reflecting light properly
D. None of these
5 In cause of YDS experiment, the distance between adjacent bright fringes is given by
A. Δy =λL/d
B. ΔY = L/λd
C. ΔY =λ/L
D. None of these
6 Which one of the following can act approximately as a source of monochromatic light:
A. Neon lamp
B. Fluorescent tube
C. Sodium lamp
D. None of these
7 In order to observe interference , the interfering beams must be
A. monochromatic
B. coherent
C. either of them
D. both of them
8 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
9 Spectrometer using diffraction grating can measure
A. Wavelength of light
B. Frequency of light
C. Intensity of light
D. None of these
10 Plane microwaves are incident on a long slit having a width of 5 cm.The wavelength of the microwaves if the first minima is formed at 30° is
A. 25 cm
B. 5 cm
C. 2.5 cm
D. 5 mm

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