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

The typical wavelength of the signal which we sent in the optical fibre is

Question # 2

Which one of the following phenomenon cannot be explained by the wave theory of light ?

Question # 3

Light of wavelength 800 n m is incident on a pair of slits, forming fringes 4.0 mm apart on a screen. What is the fringe when light of 400 nm is used and the slit separation is halved?

Question # 4

Conditions for interference are that the two sources should be coherent and

Question # 5

For constructive interference path difference should be

Question # 6

In electromagnetic waves electric and magnetic field ar

Question # 7

A limited region taken on a wavefront which is far away form the source is

Question # 8

For obtaining equal and same height mirror should be

Question # 9

The relation between displacement of the mirror 'L' and wavelength λ of the light used

Question # 10

A point source in a homogeneous medium gives rise to:

Question # 11

When an image is placed at the focal length of the eye piece, the final image formed at

Question # 12

Which of the following types of optical fibre has a core which rages in diameter from 50 to 1000μm?

Question # 13

The image formed after objective lens of an astronomical telescope is

Question # 14

A convex ens acts as diverging lens when the object is placed

Question # 15

Michelson's interferometer is an instrument that is capable of measuring distance with

Question # 16

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

Question # 17

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

Question # 18

Zero order image formed by the grating when the angle the along the direction of normal to grating is

Question # 19

A pulse of light in the optical fibres represents the number

Question # 20

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

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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 light signals are sent from the source
A. A ordinary source
B. A monochromatic light source
C. A moulticolour source
D. None of these
2 If the slits in YDS experiment are made closer, fringe spacing will:
A. Increase
B. Decrease
C. Remain same
D. None of above
3 A line normal to the wave front is called
A. A beam of light
B. A ray of light
C. Both
D. None of these
4 In Newton's rings the point of contact of the lens and the glass plate, the air film is
A. Minimum
B. Maximum
C. Zero
D. None of these
5 If the magnification M1 = 20.0 for objective and M2 = 12.0 then total magnification is
A. 200
B. 240
C. 260
D. 280
6 A diffraction pattern is obtained using a beam of red light What will happen if the red light is replaced by blue light?
A. No change
B. Diffraction bands become narrower and crowded together
C. Bands become broader and farther apart
D. Bands disappear
7 When the length of a microscope tube increases its magnifying power
A. Decreases
B. Increases
C. Does not change
D. May increase or decrease depending on the observer and the place of observation
8 Rainbow is formed due to combination of
A. Dispersion and total internal reflection
B. Reflection and refraction
C. Dispersion and focusing
D. Refection and scattering
9 The practical use of services by optic fiber is
A. Two way television
B. World processing
C. Image transmitting and receiving equipment
D. All of these
10 The resolution of microscope depends on objective's
A. Focal length
B. Material
C. Diameter
D. None of these

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