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

How is the image formed by a convex lens affected if the upper half of the lens is covered with a paper

Question # 2

Two layers optical fibre in which central layer is called core which has refractive index

Question # 3

The unit of power of a lens is

Question # 4

Power loss taken place when a light signal travels along fibres by

Question # 5

Newton's rings are formed due to

Question # 6

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

Question # 7

The polarized can be achieved by using process like

Question # 8

Fire optics has ability to transmit

Question # 9

In Newton s rings the central spot appears dark due to

Question # 10

According to the Huygen's principle, the secondary wavelets propagate in the forward direction with a speed equal to

Question # 11

The typical wavelength of light source in transmitter is

Question # 12

Which does not show polarization

Question # 13

In Michelsons interference the movable mirror is moved and a shift of two fringes is observed then the distance moved by the mirror is

Question # 14

The ratio of fringes with for bright and dark fringes is

Question # 15

When the light from two lamps falls on a screen, no interference pattern can be obtained. Why is this?

Question # 16

Propagation of light in an optical fibre requires

Question # 17

Choose the correct statement

Question # 18

The power loss can also take place due to

Question # 19

A lens of 2 cm focal length is to be used as a magnifying glass. Its magnification is

Question # 20

The diffraction grating is used to measure

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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 Fraunhofer spectrum is a
A. Line absorption spectrum
B. Band absorption spectrum
C. Line emission spectrum
D. Band emission spectrum
2 In an astronomical telescope the eye piece has the focal length fe if
A. Short
B. Long
C. Extremely long
D. None of these
3 Frequency of red colour as compared to that of violet colour is:
A. Equal
B. Smaller
C. Greater
D. None of these
4 Light is a type of energy which produces sensation of
A. Sound
B. Feeling
C. Vision
D. None of these
5 Which electromagnetic wave would cause the most significant diffraction effect for an atomic lattice of spacing around 10-10m?

A. microwave
B. infrared
C. ultraviolet
D. X-ray
6 In which mode, the refractive index steps down form 1.52 to 1.48 at the boundary with the cladding?
A. Single mode step index
B. multimode step index
C. multimode graded index
D. all of them
7 The information carrying capacity in an optical fibre is called
A. wavelength
B. frequency
C. bandwidth
D. none of them
8 An object is placed between the focus and the optical center of the convex lens. The image formed is
A. Real, erect and magnified
B. Virtual, inverted and magnified
C. Virtual, erect and diminished
D. Virtual, erect and magnified
9 What will be the colour of the sky as seen from the earth if there were no atmosphere ?
A. Black
B. Blue
C. Orange
D. Red
10 A light wave produced by oscillating charge consists of a periodic variation of
A. electric field
B. magnetic field
C. either of them
D. both of them

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