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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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Total Questions15
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Time Allowed20
Physics ECAT Pre Engineering Chapter 10 Optical Instruments
00:00
Question # 1
Huygen principle is used to determine
Question # 2
Speed of light in vacuum depends upon
Question # 3
In case of destructive interference of two waves, the amplitude of the resultant wave will be __________ either of the waves.
Question # 4
In an interference pattern of Young's Double Slit (YDS) experiment
Question # 5
Laws of reflection and refraction can also be explained by
Question # 6
Two sources are said to be coherent if they have
Question # 7
When the source of light is at very large distance, the shape of wavefront is
Question # 8
Which one of the followings can act approximately as a source of monochromatic light
Question # 9
The appearance of colours in the soap (or oil) film results from
Question # 10
The property of light which does not change with the nature of the medium is
Question # 11
To observe interference of light, the condition, which must be met with is that the sources must be
Question # 12
Electromagnetic waves transport
Question # 13
In YDS experiment, fringe spacing means the distance between two consecutive _________ fringes
Question # 14
The wave nature of light was proposed by
Question # 15
The speed of the secondary wavelets as mentioned in Huygen's principle is ________ the speed of propagation of the wave itself
Top Scorers Of Physics ECAT Pre Engineering Chapter 10 Optical Instruments MCQ`s Test
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A Abubakar basra 29 - Feb - 2024 00 Min 39 Sec 60/60 -
D Deuspeu 25 - Sep - 2024 00 Min 56 Sec 60/60 -
F Farida Tabassum 05 - Mar - 2024 01 Min 02 Sec 60/60 -
N Naheed Akhter 25 - May - 2024 01 Min 17 Sec 60/60 -
I Israr Ahmed 08 - Mar - 2024 01 Min 40 Sec 60/60 -
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M Mustaqeem 04 - Mar - 2024 05 Min 07 Sec 60/60 -
F Farzand Shah Farzand Shah 17 - Apr - 2024 01 Min 24 Sec 55/60 -
T Tamshi Sohail 20 - Apr - 2024 01 Min 30 Sec 55/60 -
A Adan Zahra 14 - Mar - 2024 01 Min 57 Sec 55/60 -
A Anibullah Anib 04 - Mar - 2024 02 Min 14 Sec 55/60 -
A Abdullah Kaleem 25 - Mar - 2024 04 Min 02 Sec 55/60 -
A Alisha Gohar 20 - Jul - 2024 02 Min 11 Sec 50/60 -
M M numan Saleem 26 - Mar - 2026 02 Min 48 Sec 48/60 -
H hamza sattar 19 - May - 2024 01 Min 02 Sec 45/60
ECAT Physics Chapter 10 Important MCQ's
| Sr.# | Question | Answer |
|---|---|---|
| 1 | Light waves are |
A. Transverse waves
B. Longitudinal waves
C. Compressional
D. None of them wave
|
| 2 | The appearance of colours in the soap (or oil) film results from |
A. Dispersion
B. Interference
C. Reflection
D. Refraction
|
| 3 | The appearance of colours in the soap (or oil) film results from |
A. Dispersion
B. Interference
C. Reflection
D. Refraction
|
| 4 | Wavelength of red colour as compared to that of violet colour is |
A. Smaller
B. Longer
C. Equal
D. None of these
|
| 5 | In case of point source of light, shape of wavefront is |
A. Spherical
B. Cylindrical
C. Plane
D. None of above
|
| 6 | 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
|
| 7 | Wavelength of light, on the average, is given by |
A. 10-14m
B. 10-10m
C. 10-6m
D. 10-4m
|
| 8 | 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
|
| 9 | 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
|
| 10 | Light waves are |
A. Mechanical waves
B. Electromagnetic waves
C. Any of above
D. None of above
|
Test Questions