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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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Total Questions15
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Time Allowed20
ECAT Physics Chapter 10 Optical Instruments
00:00
Question # 1
Two sources are said to be coherent if they have
Question # 2
Huygen principle is used to determine
Question # 3
Angle between ray of light and the corresponding wavefront is
Question # 4
Electromagnetic waves transport
Question # 5
The appearance of colours in the soap (or oil) film results from
Question # 6
In case of constructive interference of two waves, the amplitude of the resultant wave is __________ either of the waves
Question # 7
The speed of the secondary wavelets as mentioned in Huygen's principle is ________ the speed of propagation of the wave itself
Question # 8
Wavelength of light, on the average, is given by
Question # 9
In YDS experiment, fringe spacing means the distance between two consecutive _________ fringes
Question # 10
The wave nature of light was proposed by
Question # 11
In case of destructive interference of two waves, the amplitude of the resultant wave will be __________ either of the waves.
Question # 12
Huygen's principle states that
Question # 13
Light waves are
Question # 14
Which one of the followings can act approximately as a source of monochromatic light
Question # 15
Frequency of red colour as compared to that of violet colour is
Top Scorers Of ECAT Physics Chapter 10 Optical Instruments MCQ`s Test
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A Abdullah Baloch 27 - Jul - 2024 00 Min 12 Sec 60/60 -
H Heer 13 - Dec - 2023 00 Min 33 Sec 60/60 -
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M Mohammad Khalid 27 - May - 2024 04 Min 10 Sec 55/60 -
A Ayema Khalid 12 - Feb - 2023 10 Min 50 Sec 55/60
ECAT Physics Chapter 10 Important MCQ's
| Sr.# | Question | Answer |
|---|---|---|
| 1 | In an interference pattern of Young's Double Slit (YDS) experiment |
A. Bright fringes are wider than dark fringes
B. Dark fringes are wider than bright fringes
C. Both dark and bright fringes are of equal width
D. Central fringes are wider than the outer fringes
|
| 2 | Huygen's principle states that |
A. Light travels in straight line
B. Light has dual nature
C. Either of these
D. None of these
|
| 3 | Light has |
A. Wave nature
B. Dual nature
C. Particle nature
D. None of them
|
| 4 | In case of destructive interference of two waves, the amplitude of the resultant wave will be __________ either of the waves. |
A. Greater than
B. Smaller than
C. Equal to
D. None of these
|
| 5 | 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
|
| 6 | In YDS experiment, fringe spacing means the distance between two consecutive _________ fringes |
A. Bright
B. Dark
C. Any of A or B
D. None of these
|
| 7 | Huygen principle is used to determine |
A. Speed of light
B. Location of wavefront
C. About polarized and unpolarized light
D. None of them
|
| 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 | Light waves are |
A. Mechanical waves
B. Electromagnetic waves
C. Any of above
D. None of above
|
| 10 | Speed of light in vacuum depends upon |
A. Frequency
B. Wavelength
C. Amplitude
D. None of these
|
Test Questions
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