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

00:00
Question # 1

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

Question # 2

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

Question # 3

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

Question # 4

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

Question # 5

Huygen principle is used to determine

Question # 6

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

Question # 7

Speed of light in vacuum depends upon

Question # 8

Laws of reflection and refraction can also be explained by

Question # 9

Electromagnetic waves transport

Question # 10

Angle between ray of light and the corresponding wavefront is

Question # 11

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

Question # 12

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

Question # 13

Wavelength of light, on the average, is given by

Question # 14

Two sources are said to be coherent if they have

Question # 15

The speed of the secondary wavelets as mentioned in Huygen's principle is ________ the speed of propagation of the wave itself

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ECAT Physics Chapter 10 Important MCQ's

Sr.# Question Answer
1 Light has
A. Wave nature
B. Dual nature
C. Particle nature
D. None of them
2 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
3 Speed of light in vacuum depends upon
A. Frequency
B. Wavelength
C. Amplitude
D. None of these
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 The wave nature of light was proposed by
A. Newton
B. Thomas Young
C. Huygen
D. None of these
6 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
7 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
8 Wavelength of light, on the average, is given by
A. 10-14m
B. 10-10m
C. 10-6m
D. 10-4m
9 The terms phase difference and path difference are
A. Same
B. Different
C. Equal
D. none of these
10 Light waves are
A. Mechanical waves
B. Electromagnetic waves
C. Any of above
D. None of above

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