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

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

Question # 2

In case of point source of light, shape of wavefront is

Question # 3

Monochromatic light means wave of

Question # 4

Huygen's principle states that

Question # 5

Angle between ray of light and the corresponding wavefront is

Question # 6

Light waves are

Question # 7

Speed of light in vacuum depends upon

Question # 8

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

Question # 9

A line which represents the direction of travel of a wave is known as

Question # 10

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

Question # 11

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

Question # 12

To observe interference of light, the condition, which must be met with is that the sources must be

Question # 13

The wave nature of light was proposed by

Question # 14

Electromagnetic waves transport

Question # 15

Two sources are said to be coherent if they have

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ECAT Physics Chapter 10 Important MCQ's

Sr.# Question Answer
1 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
2 The appearance of colours in the soap (or oil) film results from
A. Dispersion
B. Interference
C. Reflection
D. Refraction
3 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
4 Huygen's principle states that
A. Light travels in straight line
B. Light has dual nature
C. Either of these
D. None of these
5 Angle between ray of light and the corresponding wavefront is
A. 00
B. 600
C. 900
D. 1200
6 Speed of light in vacuum depends upon
A. Frequency
B. Wavelength
C. Amplitude
D. None of these
7 To observe interference of light, the condition, which must be met with is that the sources must be
A. Monochromatic
B. Phase coherent
C. Both of above
D. None of above
8 Wavelength of red colour as compared to that of violet colour is
A. Smaller
B. Longer
C. Equal
D. None of these
9 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
10 Light waves are
A. Transverse waves
B. Longitudinal waves
C. Compressional
D. None of them wave

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