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

If the slits in YDS experiment are made closer, fringe spacing will

Question # 2

A planet is observed by an astronomical refracting telescope having an objective of focal length 16 m and an eyepiece of focal length 2 cm.

Question # 3

The optical resolution of microscope or a telescope tells us how close together, the two point sources of light can be so that they are still seen as two separate sources

Question # 4

Repeaters are the devices which regenerate the signals and are placed at about

Question # 5

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

Question # 6

The wave nature of light was proposed by:

Question # 7

The distance between the two adjacent slits is called

Question # 8

X-rays is a type of electron magnetic radiations of much shorter wavelengths of the order of

Question # 9

In YDS experiment, the condition for constructive interference of two coherent waves is that the path difference should be

Question # 10

By which principle we can locate the position of new wavefront after a later time?

Question # 11

Power of a lens is equal to

Question # 12

Inverse square law for luminance is valid for

Question # 13

Wave length of red colour as compared to that of violet colour is:

Question # 14

Colour of thin film will not show result from

Question # 15

A convex lens is dipped in a liquid whose refractive index is equal to the material of the lens. Then its focal length will become

Question # 16

In order to observe interference , the interfering beams must be

Question # 17

Light waves are

Question # 18

According to Huygen's principle, every point of a wavefront may be considered as a source of

Question # 19

Which light travels faster in optical fibres?

Question # 20

In Bragg's Equation 2d sin θ = nλ, where 'n' is

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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 Point out angle/angle at which the sin θ and tan θ have the same value
A. 2o and 8o
B. 4o and 6o
C. 2o and 4o
D. 8o and 10o
2 We can divide the optical fibres on the basis of the mode by which they propagate light in
A. two types
B. three types
C. four types
D. many types
3 Graham Bell photo phone used a modulated beam of
A. Reflected sun light
B. Refracted sun light
C. Diffracted sun light
D. None of these
4 Wavelength of X-rays falling at a glancing angle of 30° on a crystal with atomic spacing 2 x 10-10m for first order diffraction is
A. 4 x 10-10m
B. 2 x 10-10m
C. 0.2 x 10-10m
D. 20 x 10-10m
5 The laser light used in an optical fiber system has a wavelength equal to
A. 3μm
B. 5μm
C. 1.3μm
D. 6μm
6 On a rainy day if there is an oil drop on tar road colored rings are seen around this drop This is because of
A. Interference pattern produced due to thin oil film
B. Diffraction pattern
C. Polarization
D. Total internal reflection of light
7 In a never system, the repeaters are placed at about
A. 50 km
B. 75 km
C. 100 km
D. 125 km
8 The index of refraction of diamond is 2.0 velocity of light in diamond in m/s is
A. 6 x 108
B. 3 x 108
C. 2 x 108
D. 1.5 x 108
9 Colour of thin film will not show result from
A. Scattering of light
B. Dispersion of light
C. Interference of light
D. Both a and b
10 The contrast in the fringes in any interference pattern depends on
A. Frings width
B. Intensity ratio of the sources
C. Distance between the slits
D. Wavelength

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