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

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

Question # 2

Conventionally, all the distances p, q, f, are measured from ______ of the lens

Question # 3

A ______ lens is used in the apparatus to get Newton,s rings

Question # 4

Light appears to travel in straight line because

Question # 5

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

Question # 6

Which one of the following phenomenon cannot be explained on the bases of Huygen's theory?

Question # 7

Optical fibres are of

Question # 8

The least distance of distinct vision for a normal eye is

Question # 9

Experimental demonstration of wave nature of light was given in 1801 by:

Question # 10

According to Huygen's principle:

Question # 11

When light signal travels along fibres, the power losses are mainly due to

Question # 12

The apparent size of an object depends on the angle subtended but it at the eye. As the angle increases the size of the object

Question # 13

The re conversion of light signals into electrical signals takes place due to

Question # 14

When light passes through a tourmaline crystal, it becomes

Question # 15

The velocity of light in vacuum can be changed by changing:

Question # 16

When interference of light takes place

Question # 17

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

Question # 18

Wave front is the locus or all points in vibration are in the same

Question # 19

When the source of light is at very large distance, the shape of wavefront is:

Question # 20

In cause of YDS experiment, the distance between adjacent bright fringes is given by

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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 In Young's double slit experiment fringe width (or fringe spacing) depends
A. inversely on wavelength
B. directly on wavelength
C. directly on square of wavelength
D. inversely on square of wavelength
2 When an image is placed at the focal length of the eye piece, the final image formed at
A. 2 F
B. 4 F
C. 6 F
D. Infinity
3 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
4 An oil surface floating on water surface exhibits beautiful colour patter, which is due to 
A. Reflection of light
B. Diffraction of light
C. Interference of light
D. None of these
5 In the thin film, the path difference of two reflected ray depends upon
A. Thickness of the film
B. Nature of the film
C. Angle of incidence
D. All of these
6 If the power of a lens is 4 diopters then is focal length is
A. 20 cm
B. 25 cm
C. 50 cm
D. 400 cm
7 A ray of light passing from a rarer to a denser medium
A. Bends towards normal
B. Bends away from normal
C. Suffers no change in direction
D. None of these
8 In case of interference fringes:
A. Energy is destroyed at dark
B. Energy is created at bright fringes
C. Energy is transferred from dark to bright ringes
D. None of these
9 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?
A. 16 X
B. 8 X
C. 4 X
D. 2 X
10 In newton's rings apparatus, we also use:
A. Spectroscope
B. Telescope
C. Microscope
D. Any of these

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