ECAT Pre Engineering Physics Chapter 10 MCQ Test With Answer

MCQ's Test For Physics ECAT Pre Engineering Chapter 10 Optical Instruments

Try The MCQ's Test For Physics ECAT Pre Engineering Chapter 10 Optical Instruments

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Physics ECAT Pre Engineering Chapter 10 Optical Instruments

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Question # 1

Electromagnetic waves transport

Question # 2

The terms phase difference and path difference are

Question # 3

Angle between ray of light and the corresponding wavefront is

Question # 4

Wavelength of light, on the average, is given by

Question # 5

In an interference pattern of Young's Double Slit (YDS) experiment

Question # 6

Frequency of red colour as compared to that of violet colour is

Question # 7

The appearance of colours in the soap (or oil) film results from

Question # 8

Light has

Question # 9

Speed of light in vacuum depends upon

Question # 10

Monochromatic light means wave of

Question # 11

In case of destructive interference of two waves, the amplitude of the resultant wave will be __________ either of the waves.

Question # 12

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

Question # 13

The property of light which does not change with the nature of the medium is

Question # 14

Huygen principle is used to determine

Question # 15

The wave nature of light was proposed by

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ECAT Physics Chapter 10 Important MCQ's

Sr.# Question Answer
1 Wavelength of red colour as compared to that of violet colour is
A. Smaller
B. Longer
C. Equal
D. None of these
2 The terms phase difference and path difference are
A. Same
B. Different
C. Equal
D. none of these
3 Angle between ray of light and the corresponding wavefront is
A. 00
B. 600
C. 900
D. 1200
4 In case of destructive interference of two waves, the amplitude of the resultant wave will be __________ either of the waves.
A. Greater than
B. Smaller than
C. Equal to
D. None of these
5 The locus of all the points in the same phase of vibration is called
A. Wave pocket
B. Wavefront
C. Wave number
D. None of these
6 Huygen's principle states that
A. Light travels in straight line
B. Light has dual nature
C. Either of these
D. None of these
7 Two sources are said to be coherent if they have
A. Same amplitude
B. Same wavelength
C. Definite phase relation with each other
D. None of them
8 Wavelength of light, on the average, is given by
A. 10-14m
B. 10-10m
C. 10-6m
D. 10-4m
9 Light waves are
A. Transverse waves
B. Longitudinal waves
C. Compressional
D. None of them wave
10 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

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