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

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

Question # 2

The terms phase difference and path difference are

Question # 3

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

Question # 4

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

Question # 5

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

Question # 6

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

Question # 7

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

Question # 8

Monochromatic light means wave of

Question # 9

Speed of light in vacuum depends upon

Question # 10

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

Question # 11

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

Question # 12

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

Question # 13

Laws of reflection and refraction can also be explained by

Question # 14

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

Question # 15

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

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ECAT Class Physics Chapter 10 Important MCQ's

Sr.# Question Answer
1 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
2 Light waves are
A. Mechanical waves
B. Electromagnetic waves
C. Any of above
D. None of above
3 Huygen's principle states that
A. Light travels in straight line
B. Light has dual nature
C. Either of these
D. None of these
4 Speed of light in vacuum depends upon
A. Frequency
B. Wavelength
C. Amplitude
D. None of these
5 Monochromatic light means wave of
A. Same frequency
B. Same colour
C. Same Wavelength
D. All of them
6 The appearance of colours in the soap (or oil) film results from
A. Dispersion
B. Interference
C. Reflection
D. Refraction
7 The appearance of colours in the soap (or oil) film results from
A. Dispersion
B. Interference
C. Reflection
D. Refraction
8 Frequency of red colour as compared to that of violet colour is
A. Equal
B. Smaller
C. Greater
D. None of these
9 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
10 Huygen principle is used to determine
A. Speed of light
B. Location of wavefront
C. About polarized and unpolarized light
D. None of them

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