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

If the power of a lens is 4 diopters then is focal length is

Question # 2

The speed of the secondary wavelets as mentioned in Huygen's principle is ________ the speed of propagation of the wave itself

Question # 3

By which principle we can locate the position of new wavefront after a later time?

Question # 4

A sun rise or sun set the sun looks reddish because

Question # 5

In Young's double slit experiment,the separation between the slits is made 3 fold the fringe width becomes

Question # 6

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

Question # 7

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

Question # 8

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

Question # 9

If the cover of a red book is observed in monochromatic blue light,It will appear

Question # 10

In the relations d sinθ = nλ, shows that the value of θ depends upon 'n' so the images of different colours are much separated in

Question # 11

When interference of light takes place

Question # 12

A ray of light reflected from a dense medium under goes a phase change of:

Question # 13

The points on a Huygen's wave front which sends out secondary wavelets are also

Question # 14

One cannot see through fog becuase

Question # 15

What is the time taken by light to travel 4 mm in a material of refractive index 3

Question # 16

The difference between 1st ring fringe and 1st dark fringe is measured as

Question # 17

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

Question # 18

The index of refraction of diamond is 2.0 velocity of light in diamond in m/s is

Question # 19

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

Question # 20

A compound microscope is consists of an eye piece  of focal length

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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 Diffraction of light occurs, due to the interference between rays coming from the same wavefront of
A. The same parts
B. The different parts
C. Mixed rays
D. None of these
2 The central point in the Newton's rings is dark due to
A. Destructive interference
B. Constructive interference
C. Additional of path difference λ/2
D. b and c
3 Power loss taken place when a light signal travels along fibres by
A. Multiple reflection
B. Light absorbed due to impurities in glass
C. At joint some light is scattered by group of atoms
D. All of these
4 The distance between the concentric wavefronts is
A. half wavelength
B. one wavelength
C. one and a half wavelength
D. none of them
5 In case of YDS experiment, the distance of the mth bright fringe on the screen from center is
A. Y = (m + 1)λL/d
B. Y = mλL/d
C. Y = (m + 1/2)λL/d
D. None of these
6 A planet is observed by an astronomical refracting telescope having an objective of focal length 16 m and an eyepiece of focal length 2 cm.
A. The distance between the objective and the eyepiece is 8m
B. The angular magnification of the planet is 200
C. The image of the planet is inverted
D. The objective is smaller than the eyepiece
7 The idea of light as wave produced by
A. Huygen
B. Newton
C. Thomos Young
D. Michelson
8 The object is placed at the principle focus of a simple microscope if the focal length of the lens is 2cm what is the magnifying power of the microscope
A. 13.5
B. 12.5
C. Infinity
D. None of these
9 A _____ lens is used in the apparatus to get newton's ring:
A. Plano-concave
B. Plano-convex
C. Convexo concave
D. Double covex
10 Reflection of light from water, glass, snow and rough road surfaces, for larger angle of incidences, produces
A. images
B. bright images
C. interference
D. glare

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