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

In photo phone modulated beam of reflected sun light focused on a detector several hundred meters away with the divice

Question # 2

The materials which are used in selective absorption method to polarize the light are

Question # 3

The transmitter in optical fiber system contains a device called

Question # 4

Experimental demonstration of wave nature of light was given in 1801 by:

Question # 5

For constructive interference path difference should be

Question # 6

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

Question # 7

In the relations d sinθ = nλ, shows that the value of θ depends upon 'n' so the images of different colours are much separated in

Question # 8

If the plane polarized light is incident on the second sheet of Polaroid, no light is emitted when their axes are

Question # 9

An oil surface floating on water surface exhibits beautiful colour patter, which is due to 

Question # 10

Certain light of wavelength 600 nm is used to view an object under the microscope. If the aperture of its objective is 1.22 cm, then the limiting angle of resolution will be

Question # 11

A line normal to the wave front is called

Question # 12

Which of the following light move faster in water

Question # 13

Diffraction of light occurs, due to the interference between rays coming from the same wavefront of

Question # 14

In spectrometer the function of collimator is to produce

Question # 15

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

Question # 16

In the thin film, the path difference of two reflected ray depends upon

Question # 17

Optically active substance are those substance which

Question # 18

The image of the tip of a needle is never sharp because of

Question # 19

In Newton's rings the point of contact of the lens and the glass plate, the air film is

Question # 20

For glass-air boundary, the value of the critical angle 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 The plane of polarization is rotated many degrees when a thickness of such crystal is
A. One millimeter
B. Less than one millimeter
C. A few millimeter
D. None of these
2 Light waves produce interference when
A. source are monochromatic
B. source are phase coherent
C. sources are close together
D. all of them
3 If the wavelength of light used in Michelsion's interferometer is 400 nm and the moveable mirror only moved throughλ/4, then the length moved will be
A. 10 nm
B. 10-2mm
C. 1 nm
D. 10-4mm
4 Which one light source can travel faster through optical fibre is
A. Infra red
B. Visible
C. Ultra violet
D. All of these
5 Light waves are:
A. Mechanical waves
B. Electromagnetic waves
C. All of above
D. None of above
6 If red light is incident on sea water it appears
A. Red
B. Green
C. Blue
D. Yellow
7 Angle between ray of light and the corresponding wave front is
A. 10°
B. 60°
C. 90°
D. 120°
8 At the point of contact of the lens and the glass plate, the incident and reflected rays interfere
A. constructively
B. destructively
C. either of them
D. none of them
9 We can achieve polarization by
A. Absorption
B. Reflection
C. Scttering
D. All of above
10 Speed of light in vacuum depends upon:
A. Frequency
B. Wavelength
C. Amplitude
D. None of above

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