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

Ordinary light has components of vibration in

Question # 2

The minimum distance between a source and the screen for which a real image is possible with a convex lens is

Question # 3

Finger prints on paper are identified by sprinkling fluorescent powder on it and observing it under

Question # 4

When 'θ' is small then

Question # 5

The ratio of the diameter of two convex lenses is the ratio of their focal lengths

Question # 6

Which light travels faster in optical fibres?

Question # 7

Diffraction of X-ray by crystals show that

Question # 8

Multi-mode step index fibre index fibre is used to send

Question # 9

The unpolarized light is

Question # 10

The light source used in multimode step index fibre is

Question # 11

In multi-mode step index optical fibre, that layer is called cladding which has

Question # 12

Which mode can carry more than 14 TV channels or 14000 phone cells?

Question # 13

A two-slit arrangement is set up to produce an interference pattern on a screen. The fringes are too close together for convenient observation. How could the distance between them be increased?

Question # 14

An optical fiber of ______ cm in diameter id equivalent to 7.62 cm diameter bundle of ______ wires to carry the same amount of signals

Question # 15

Single mode step index fibre has

Question # 16

When interference of light takes place

Question # 17

A light wave produced by oscillating charge consists of a periodic variation of

Question # 18

If yellow light emitted by sodium lamp in Young's double slit experiment is replaced by blue light of the same intensity:

Question # 19

When an image formed by the objective lies at the focus of both the objective and the eye-piece, the telescope is said to be in

Question # 20

Huygen's wave front which sends out secondary wavelets with a speed equal to

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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 wavelength of X-rays is about
A. 10-14m
B. 10-10m
C. 10-6m
D. 10-4m
2 A converging lens in used to from an image on a screen when the upper half of the lens is covered by an opaque screen
A. Half the image will disappear
B. No change either in size or in intersity
C. Intensity of image will increase
D. Intensity of the image will decrease
3 The typical example/examples of optically active crystals
A. Quartz
B. Crystals of sodium chlorate
C. Crystals of sodium chloride
D. a and b
4 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
5 Which of the following is an optical fibre in which the density of central core decreases towards its periphery?
A. multi-mode step index fibre
B. multi-mode graded index fibre
C. both of them
D. none of them
6 The least distance of he distinct vision is
A. 20 cm
B. 22 cm
C. 25 cm
D. 30 cm
7 Focal length of convex lens is maximum for
A. Blue light
B. Yellow light
C. Green light
D. Red light
8 Confining the light vibrations in one plane is called:
A. Reflection of light
B. Interference of light
C. Polarization of light
D. Diffraction of light
9 Two sources are said to be coherent if they have:
A. Same amplitude
B. Same wavelength
C. Definite phase relation with each other
D. None of them
10 Which one of the following is nearly monochromatic
A. Light from candle
B. Light from simple lamp
C. Light from sodium lamp
D. Light from sun

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