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

  • Total Questions20

  • Time Allowed20

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MDCAT Physics Chapter 7 Light Online Test

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Question # 1

The image formed after objective lens of an astronomical telescope is

Question # 2

The distance between the two adjacent slits is called

Question # 3

The danger signals are red while the eye is more sensitive to yellow because

Question # 4

In the formulaαamino = 1.22λ/D, D denotes

Question # 5

With a graded index fibre, the overall time difference between all the wavelengths arrived at the other end may be about

Question # 6

Which does not show polarization

Question # 7

The least distance of he distinct vision is

Question # 8

The bright fringes are termed as

Question # 9

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 # 10

A diffraction grating contains 5000 lines per centimeter, its grating element will be

Question # 11

In Michelsons interference the movable mirror is moved and a shift of two fringes is observed then the distance moved by the mirror is

Question # 12

Michelson,s interferometer can be used to measure

Question # 13

Multimode step index fibre is useful for

Question # 14

How many types of the optical fibres are

Question # 15

In the Young's double slit experiment the separation between the slits is halved and the distance between the slits and the screen is doubled the fringe width is

Question # 16

The medium in which speed of light is the same in all directions is called:

Question # 17

Spectrometer can be used to

Question # 18

What will be the colour of the sky as seen from the earth if there were no atmosphere ?

Question # 19

The velocity of light in vacuum can be changed by changing

Question # 20

There will be no change in _______ of light entering glass

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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 A diffraction grating of length 2cm has 4000 lines The grating element is
A. 0.5 x 10-2 cm
B. 5 x 104
C. 5 x 10-4
D. 0.5 x 10-4 cm
2 A plane wavefront is that which has source
A. Nearest
B. Distant
C. Near
D. None of these
3 When sunlight falls on a soap bubble (film), it appears coloured because of
A. interference of light
B. dispersion of light
C. polarization of light
D. diffraction of light
4 The ability of an instrument of reveal the minor details of an object under examination is called
A. Resolution
B. Magnification
C. Resolving power
D. Dispersion
5 If focal length of objective is increased
A. Magnifying power of compound microscope decreased
B. Magnifying power of astronomical telescope increases
C. The diameter of the objective lens
D. None of these
6
Question Image
7 In an optical fibre the speed of light is
A. Directly proportional to its refractive
B. Inversely proportional to its refractive inedex
C. Independent of refractive index
D. Directly proportional to square of refractive index
8 Angle subtended by any side of the eight-sided mirror at the center is
A. π/8
B. π/4
C. 2π/8
D. 2π/4
9 An optical fiber of ______ cm in diameter id equivalent to 7.62 cm diameter bundle of ______ wires to carry the same amount of signals
A. 0.6, aluminum
B. 6.0, copper
C. 0.6, copper
D. 6.0, aluminum
10 Sunlight is also partially polarized because of Earth's atmosphere due to scattering by
A. Water vapours
B. Air particles
C. Dust particles
D. All of these

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