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

In newton's rings see through the reflected light, centeral spo is:

Question # 2

Polaroid glass is used in sun glasses because

Question # 3

Two sources of light are said to be coherent when the waves produced by them have

Question # 4

The light produced by a laser is all the following except

Question # 5

Electromagnetic waves transport:

Question # 6

The waves propagate in space by the motion of the

Question # 7

A microscope has an objective lens of 10 mm focal length and an eye piece of 25.0 mm focal length what is the distance between the lenses

Question # 8

In young's double slit experiment the separation between the slit is halved and distance between the slit and screen is doubled.The fringe width is

Question # 9

The twinkling of stars is due to

Question # 10

If the red light is replaced by blue light illuminating the object in a microscope the resolving power of the microscope

Question # 11

In Young's double slit experiment for the interference of light, the central region of the fringe system is

Question # 12

In the Young's double slit experiment the separation between the slits is halved and the distance between the slits and the screen is doubled the fringe width is

Question # 13

 In the phenomenon of interference, the bright and dark fringes are of

Question # 14

In case of point source of light, shape of wavefront is:

Question # 15

The distance between the two mirrors can be varied by

Question # 16

Polaroids are used in

Question # 17

To get high resolving power for a telescope one should use

Question # 18

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

Question # 19

Least distance of distinct vision

Question # 20

When interference of light takes place

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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 wave propagates in space by the motion of the
A. Particles
B. Wavefronts
C. Wavelength
D. None of these
2 If yellow light emitted by sodium lamp in Young's double slit experiment is replaced by blue light of the same intensity:
A. Fringe width will decrease
B. Fringe width will increase
C. Fringe width will remain unchanged
D. Fringe will become less intense
3 Propagation of light in an optical fiber requires that light should be
A. Refracted from air to fiber
B. Continuously refraction
C. Totally reflected within the fiber
D. Both B and C
4 Due to Plano convex lens and the plane glass plate the thickness of air film changes from the center to outward
A. Increasing gradually
B. Decreasing gradually
C. It is constant at the centre
D. None of these
5 Source of light used in the fibre optic communication
A. Led
B. Laser
C. Photo diode
D. Both a and b
6 In a compound microscope the intermediate image is
A. Virtual erect and magnified
B. Real,erect and magnified
C. Virtual,inverted and magnified
D. Virtual,erect and reduced
7 We can observe only when the grating spacing is
A. of the order of the wavelength used
B. greater than the wavelength used
C. less than the wavelength used
D. any one of them
8 Refractive index of material depends upon
A. Nature of material
B. Wave length
C. Temperature
D. All of these
9 Consider telecommunication through optical fibers.Which of the following statements is not true?
A. Optical fibers may have homogeneous core with a suitable cladding
B. Optical fibers can be of graded refractive index
C. Optical fibers are subject to electromagnetic interference from outside
D. Optical fibers have extremely low transmission loss
10 The ultra-purity of optical fibre is
A. 90 % 
B. 99 %
C. 99.9 %
D. 99.99 %

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