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

The optical fibre has a layer over the central layer is called cladding of refractive index

Question # 2

The least distance of distinct vision changes with

Question # 3

In Multimode step index fibre the refractive index from its centre to the boundary is

Question # 4

Two wave of intensities I an 4I superpose then the maximum and minimum intensities are

Question # 5

In case of a point source, the shape of the wavefront is

Question # 6

The resolution of microscope depends on objective's

Question # 7

Longitudinal waves do not exhibit

Question # 8

When an image is placed at the focal length of the eye piece, the final image formed at

Question # 9

Proportion of light in an optical fibre requires that the light-should be within the fibre

Question # 10

If the vibrations of the light wave are confined to one plane only, then this light is called

Question # 11

When a movable mirror moves λ/4 distance and the light used is 400 nm, then the distance measured highly precise is

Question # 12

If the bright fringe into be observed then we have relation

Question # 13

Reflection of light from water, glass, snow and rough road surfaces, for larger angle of incidences, produces

Question # 14

Light waves produce interference when

Question # 15

For a point source of light the wave front produced are

Question # 16

Power loss taken place when a light signal travels along fibres by

Question # 17

A diffraction grating has 500 liens per mm. its slit spacing or grating element will

Question # 18

An oil film floating on water surface show colours due to

Question # 19

Whenever high magnification is desired

Question # 20

In Michelson interferometer if the moveable mirror is moved through a distance of 8λ then the number of fringes shifted are

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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 transmitter in optical fiber system contains a device called
A. LED
B. Diode
C. Transistor
D. None of these
2 In YDS experiment, if the distance between the slits and also the distance between slits and screen is doubled, the fringe width
A. Becomes doubled
B. Becomes 4 times
C. Is halved
D. Remains the same
3 When the length of a microscope tube increases its magnifying power
A. Decreases
B. Increases
C. Does not change
D. May increase or decrease depending on the observer and the place of observation
4 Which of the following is not an advantages of using optical fibres over copper cables?
A. signal attenuation
B. number of signals carried per wire
C. cost of installation
D. none of the above
5 The medium in which speed of light is the same in all directions is called:
A. Homogeneous
B. Heterogeneous
C. Non-homogeneous
D. Free space
6 Light appears to travels in straight lines since
A. It is not absorbed by the atmosphere
B. It is reflected by the atmosphere
C. Its wavelength is very small
D. Its velocity is very large
7 The tip of a needle does not give a sharp image it is due to
A. Polarization
B. Interference
C. Diffraction
D. None of these
8 The optical fibre has a layer over the central layer is called cladding of refractive index
A. High
B. Low
C. Very high
D. None of these
9 In case of constructive interference of two waves, the amplitude of the resultant wave is_____either of the waves:
A. Greater than
B. Equal to
C. Smaller than
D. None of these
10 The object is placed at the principle focus of a simple microscope if the focal length of the lens is 2cm what is the magnifying power of the microscope
A. 13.5
B. 12.5
C. Infinity
D. None of these

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