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

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MDCAT Physics Chapter 7 Light Online Test

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Question # 1

Colours seen on oily water surface by the incident white light is due to

Question # 2

In compound microscope the focal length of eye piece is

Question # 3

A compound microscope is consists of

Question # 4

Optical fibres function on the principle of

Question # 5

In young's slit experiment on interference the ratio of the intensities of a bright band and a dark band is 6 : 1 the ratio of the amplitudes o the interfering waves is

Question # 6

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

Question # 7

The resolution of microscope depends on objective's

Question # 8

On a diffraction grating which thing acts as a slit

Question # 9

When light signal travels along fibres, the power losses are mainly due to

Question # 10

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

Question # 11

Wavelength of a laser beam can be used as a standard of

Question # 12

All of the following statements are correct except

Question # 13

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

Question # 14

In which mode, the refractive index steps down form 1.52 to 1.48 at the boundary with the cladding?

Question # 15

A wider objective and the use of blue light of short wavelength produces

Question # 16

Which of the following gives three regions of the electromagnetic spectrum in order of increasing wavelength?

Question # 17

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

Question # 18

In electromagnetic waves electric and magnetic field ar

Question # 19

The length of a telescope is 36 cm.The focal lengths of its lenses can be

Question # 20

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

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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 Diffraction of light occurs, due to the interference between rays coming from the same wavefront of
A. The same parts
B. The different parts
C. Mixed rays
D. None of these
2 The distance between the concentric wavefronts is
A. half wavelength
B. one wavelength
C. one and a half wavelength
D. none of them
3  In the phenomenon of interference, the bright and dark fringes are of
A. Different width
B. Equal width
C. Dark fringes are thicker than bright
D. Nona of these
4 A circular scale is attached and graduated in
A. One degree
B. 2 degrees
C. Half degree
D. None of these
5 As the object is brought from a far off point to he focus, the magnification goes on
A. Increasing
B. Decreasing
C. Do not change
D. None of these
6 The superposition of the two waves of same frequency and amplitude travelling in the same direction gives rise to an effect called:
A. Diffraction
B. Interference
C. Polarization
D. Dispersion
7 The bottom of a container filled with liquid appear slightly raised because of
A. Refraction
B. Interference
C. Diffraction
D. Reflection
8 The diffraction is found to be prominent when the wavelength of light is
A. small as compared with the size of obstacle
B. large as compared with the size of obstacle
C. equal as compared with the size of obstacle
D. Very small as compared with the size of the obstacle
9 In photo phone modulated beam of reflected sun light focused on a detector several hundred meters away with the divice
A. Germanium
B. Selinium
C. Silicon
D. None of these
10 If the light travels in a straight line, the central region should appear
A. Bright
B. Dark
C. No effect
D. None of these

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