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

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

Question # 2

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

Question # 3

Light has

Question # 4

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

Question # 5

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

Question # 6

In YDS experiment, fringe spacing means the distance between two consecutive _________ fringes

Question # 7

The locus of all the points in the same phase of vibration is called

Question # 8

Monochromatic light means wave of

Question # 9

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

Question # 10

Light waves are

Question # 11

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

Question # 12

Huygen's principle states that

Question # 13

The wave nature of light was proposed by

Question # 14

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

Question # 15

Speed of light in vacuum depends upon

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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 Light waves are
A. Transverse waves
B. Longitudinal waves
C. Compressional
D. None of them wave
3 Monochromatic light means wave of
A. Same frequency
B. Same colour
C. Same Wavelength
D. All of them
4 Laws of reflection and refraction can also be explained by
A. Particle nature of light
B. Quantum nature of light
C. Wave nature of light
D. Complex nature of light
5 Wavelength of light, on the average, is given by
A. 10-14m
B. 10-10m
C. 10-6m
D. 10-4m
6 Angle between ray of light and the corresponding wavefront is
A. 00
B. 600
C. 900
D. 1200
7 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
8 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
9 Speed of light in vacuum depends upon
A. Frequency
B. Wavelength
C. Amplitude
D. None of these
10 The speed of the secondary wavelets as mentioned in Huygen's principle is ________ the speed of propagation of the wave itself
A. Equal to
B. Greater than
C. Smaller than
D. None of these

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