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

Colour of thin film will not show result from

Question # 2

The setting of Newton's rings is

Question # 3

Which is having minimum wavelength?

Question # 4

The range of the diameter of core in multimode graded index fibre is

Question # 5

The light which has components in all directions is called

Question # 6

If a lens is cut into two piece perpendicular to the principal axis and only part is used the intensity of the image:

Question # 7

Which one of the following waves cannot be polarized

Question # 8

The light signal in an optical fibre requires that the light should

Question # 9

If d = 0.25 cm   Y = 0.059 cm   L = 100 cm    m = 2 then λ is equal to

Question # 10

When a mirror of a Michelsion's interferometor is moved a distance of 0.5 mm, 2000 fringes are observed, the wavelength of the light used is

Question # 11

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 # 12

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

Question # 13

In Newton,s rings apparatus, we also use

Question # 14

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

Question # 15

The unpolarized light is

Question # 16

Which of the following converts electrical signals into light signals?

Question # 17

The distance between the two adjacent slits is called

Question # 18

In digital modulation, the LED or laser flashed on and off at a

Question # 19

The path difference involved in interference in thin films depends upon

Question # 20

The digital modulation is expressed in

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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 Michelson interferometer is based upon
A. Interference
B. Diffraction
C. Polarization
D. Reflection
2 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
3 In a simple microscope if the final image is located at infinity then its magnifying power is
A. 25/f
B. 25
C. f/25
D. [1 + (25/f)]
4 In an astronomical telescope the eye piece has the focal length fe if
A. Short
B. Long
C. Extremely long
D. None of these
5 The fibre core has constant refractive index such as
A. 1.48
B. 1.5
C. 1.52
D. 1.56
6 According to Huygen,every point on a wavefront may be regarded as a.........of secondary wavelets.
A. Base
B. Source
C. Producer
D. Origin
7 In Multimode step index fibre the refractive index from its centre to the boundary is
A. 1
B. 1.55
C. 1.52
D. 1.43
8 If 5000 lines per cm are ruled on different on a diffraction grating then the slit spacing will be
A. 5 x 10-3A°
B. 2 x 10-4A°
C. 5 x 10-5A°
D. 2 x 104A°
9 Speed of light in vacuum is
A. 0 ms-1
B. 3 x 108ms-1
C. 1.5 x 108ms-1
D. None of these
10 Which of the following atoms cannot be detected by X-ray crystallography?
A. carbon
B. nitrogen
C. hydrogen
D. neon

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