ECAT Pre Computer Science Chapter 10 MCQ Test With Answer

MCQ's Test For ECAT Physics Chapter 10 Optical Instruments

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

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ECAT Physics Chapter 10 Optical Instruments

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Question # 1

Huygen principle is used to determine

Question # 2

Two sources are said to be coherent if they have

Question # 3

Angle between ray of light and the corresponding wavefront is

Question # 4

Speed of light in vacuum depends upon

Question # 5

When the source of light is at very large distance, the shape of wavefront is

Question # 6

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

Question # 7

Wavelength of light, on the average, is given by

Question # 8

The terms phase difference and path difference are

Question # 9

Monochromatic light means wave of

Question # 10

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

Question # 11

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

Question # 12

In case of constructive interference of two waves, the amplitude of the resultant wave is __________ either of the waves

Question # 13

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

Question # 14

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

Question # 15

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

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ECAT Physics Chapter 10 Important MCQ's

Sr.# Question Answer
1 Light waves are
A. Mechanical waves
B. Electromagnetic waves
C. Any of above
D. None of above
2 Angle between ray of light and the corresponding wavefront is
A. 00
B. 600
C. 900
D. 1200
3 A line which represents the direction of travel of a wave is known as
A. Spherical wavefront
B. Locus
C. Ray
D. Either B or C
4 The property of light which does not change with the nature of the medium is
A. Frequency
B. Amplitude
C. Wavelength
D. None of these
5 Light has
A. Wave nature
B. Dual nature
C. Particle nature
D. None of them
6 Wavelength of light, on the average, is given by
A. 10-14m
B. 10-10m
C. 10-6m
D. 10-4m
7 Speed of light in vacuum depends upon
A. Frequency
B. Wavelength
C. Amplitude
D. None of these
8 When the source of light is at very large distance, the shape of wavefront is
A. Spherical
B. Cylindrical
C. Plane
D. None of these
9 The terms phase difference and path difference are
A. Same
B. Different
C. Equal
D. none of these
10 Electromagnetic waves transport
A. Energy only
B. Momentum only
C. Both A and B
D. None is correct

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