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

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

Question # 2

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

Question # 3

The spacing between the parallel lines are served as

Question # 4

A thin film is a transparent medium whose thickness is comparable with the wavelength of

Question # 5

Intensities of the two waves of light are I and 4I.The maximum intensity of the resultant wave after superposition is

Question # 6

In Young s experiment the distance between two adjacent fringes for blue light is than that for green light

Question # 7

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

Question # 8

The wave nature of light was first proposed by

Question # 9

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

Question # 10

An optical fiber carries data in the form

Question # 11

The speed of light in a medium depends upon

Question # 12

Star twinkle due to

Question # 13

If focal length of objective is increased

Question # 14

When one mirror of Michelson interferometer is moved a distance of 0.5 mm. 2000 fringes are observed, the wavelength of light used is

Question # 15

Which of the following cannot be polarized?

Question # 16

Which one of the following phenomenon cannot be explained on the bases of Huygen's theory?

Question # 17

An optical fiber of ______ cm in diameter id equivalent to 7.62 cm diameter bundle of ______ wires to carry the same amount of signals

Question # 18

Alexander graham bell transmits a voice message via a

Question # 19

A diffraction pattern is obtained using a beam of red light What will happen if the red light is replaced by blue light?

Question # 20

In a never system, the repeaters are placed at about

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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 laser light used in an optical fiber system has a wavelength equal to
A. 3μm
B. 5μm
C. 1.3μm
D. 6μm
2 The image formed after objective lens of an astronomical telescope is
A. Inverted
B. Diminished
C. Real
D. All of these
3 A sun rise or sun set the sun looks reddish because
A. The sun is coldest at these times
B. Of the effects of reflection and refraction
C. The sun is hottest at these times
D. Of the scattering of light
4 The wave nature of light was proposed by
A. Einstein
B. Maxwell
C. Huygen
D. Newton
5 Michelson,s interferometer can be used to measure
A. Wavelength of light
B. Intensity of light
C. Amplitude of wave
D. None of these
6 Which one of the following is nearly monochromatic
A. Light from candle
B. Light from simple lamp
C. Light from sodium lamp
D. Light from sun
7 With the help of interferometer, we can find the
A. Wavelength
B. Frequency
C. Phase
D. None of these
8 A point source in a homogeneous medium gives rise to:
A. A plane wavefront
B. A spherical wavefront
C. A cylindrical wavefront
D. An elliptical wavefront
9 A mode of propagation of light through optical fibre in which the light within the fibre is
A. Reflected
B. Refracted
C. Continuously refracted
D. None of these
10 To get three images of a single object,one should have two plane mirrors at an angle of
A. 90°
B. 120°
C. 30°
D. 160°

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