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 sunlight falls on a soap bubble (film), it appears coloured because of

Question # 2

The distance between the concentric wavefronts is

Question # 3

A line normal to the wave front is called

Question # 4

Monochromatic light directly means waves of

Question # 5

The colour of light is determined by is

Question # 6

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

Question # 7

Wavelength of light, on the average, is given by

Question # 8

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

Question # 9

The image of the tip of a needle is never sharp because of

Question # 10

An object is placed at a distance 18 cm from a convex lens. The image is formed at a distance of 9 cm the focal length of the lens is

Question # 11

Electromagnetic waves from a source were found to be significantly diffracted when passing through gaps of the order of 10 m. What type of waves are they likely to be?

Question # 12

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

Question # 13

One angshom is equal to?

Question # 14

Which of the following radiation will be focused farthest from a convex lens

Question # 15

The bottom of a container filled with liquid appear slightly raised because of

Question # 16

Confining the light vibrations in one plane is called:

Question # 17

An object is placed at a distance of 200 cm from a convex lens of focal length 10 cm the linear magnification is

Question # 18

The magnification of a compound microscope of object and eye piece of focal lengths f0and fe, respectively is

Question # 19

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

Question # 20

Using monochromatic light, interference fringes are produced on a screen placed a distance D from a pair of slits of separation a.
The separation of the fringes is X.
a is now halved and D is increased by a factor of 4.
What is the new fringe separation?

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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 An object is placed between two parallel mirrors the number of images formed is
A. 2
B. 4
C. 8
D. Infinite
2 Intensities of the two waves of light are I and 4I.The maximum intensity of the resultant wave after superposition is
A. 5I
B. 9I
C. 16I
D. 25I
3 If the incident light contains different wavelengths the images of each wavelength for a certain value is diffracted in the
A. Same directions
B. Different direction
C. Opposite direction
D. None of these
4 Which is having minimum wavelength?
A. X-rays
B. Ultra-violet rays
C. Y-rays
D. Cosmic rays
5 The disadvantage of the step-index fibre can be reduced by
A. graded index fibre
B. non-graded index fibre
C. both of these
D. none of these
6 The image formed after objective lens of an astronomical telescope is
A. Inverted
B. Diminished
C. Real
D. All of these
7 For total internal reflection to take place, the angle of incidence must be ______ than critical angle and the light should travel from ______ to ______ medium
A. Greater, rarer, denser
B. Smaller, rarer, denser
C. Smaller, denser, rarer
D. Greater, denser, rarer
8 The plane of polarization is rotated many degrees when a thickness of such crystal is
A. One millimeter
B. Less than one millimeter
C. A few millimeter
D. None of these
9 By which principle we can locate the position of new wavefront after a later time?
A. principle of irreversibility
B. principle of light
C. Archimedes principle
D. Huygen's principle
10 Which of the following phenomenon cannot take place if we consider light as longitudinal wave?
A. diffraction
B. interference
C. polarization
D. reflection

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