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

We can use Fibre optics system for

Question # 2

An optical fibre with its protective case may be typically 6.0 mm in diameter and yet it can replace bundle of copper of diameter

Question # 3

Layer of oil on water in sunlight appears coloured due to

Question # 4

A spectrum which contains all wavelengths without any break is called

Question # 5

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

Question # 6

A diffraction grating has 500 liens per mm. its slit spacing or grating element will

Question # 7

The spacing between lines of diffraction grating is

Question # 8

Which one of the following can act approximately as a source of monochromatic light

Question # 9

Such a surface on which all the points have the same phase of vibration is known as

Question # 10

The principle of Michelson's interferometers is

Question # 11

The light source in the transmitter can be either

Question # 12

In which mode, the refractive index steps down form 1.52 to 1.48 at the boundary with the cladding?

Question # 13

A simple astronomical telescope consists of

Question # 14

The multi-mode step index optical fibre, the central core has

Question # 15

Resolving power of a telescope depends on:

Question # 16

The phenomenon is found to be prominent when size of the opening (aperture) is

Question # 17

The diameter of an optical fibre with its protective case may be typically

Question # 18

A double convex lens act as a diverging lens when the object is

Question # 19

The light waves and radio waves differ in

Question # 20

According to Huygen's principle:

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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 For the normal setting of a telescope
A. Only the object is at infinity
B. Only the final image is at infinity
C. Both the object and the final image is at infinity
D. Neither the object nor the final image has to be at infinity
2 Which mode can carry more than 14 TV channels or 14000 phone cells?
A. single mod step index
B. multimode step index
C. multimode graded index
D. all of them
3 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
A. Unchanged
B. Halved
C. Doubled
D. Quadrupled
4 Refractive index of material depends upon
A. Nature of material
B. Wave length
C. Temperature
D. All of these
5 Optical fibres function on the principle of
A. reflection
B. refraction
C. total internal reflection
D. total internal refraction
6 Ordinary light has components of vibration in
A. One direction
B. Different direction
C. All directions
D. None of these
7 When the object lies between F and 2F the image formed by a convex lens is
A. Real
B. Virtual
C. Diminished
D. Erect
8 Which one of the following phenomenon cannot be explained by the wave theory of light ?
A. Reflection
B. Refraction
C. Photoelectric effect
D. Diffraction
9 Light signals in an optical fibre eventually become dim and must be regenerated by devices called
A. transmitters
B. receivers
C. photodiodes
D. none of them
10 A double convex lens acts as a diverging lens when the object is
A. Between f and 2f
B. At the foucs
C. Inside the focus
D. All of these

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