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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
Monochromatic light means wave of
Question # 2
The wave nature of light was proposed by
Question # 3
Laws of reflection and refraction can also be explained by
Question # 4
The property of light which does not change with the nature of the medium is
Question # 5
When the source of light is at very large distance, the shape of wavefront is
Question # 6
In case of destructive interference of two waves, the amplitude of the resultant wave will be __________ either of the waves.
Question # 7
Light waves are
Question # 8
Which one of the followings can act approximately as a source of monochromatic light
Question # 9
Light has
Question # 10
The terms phase difference and path difference are
Question # 11
In case of point source of light, shape of wavefront is
Question # 12
In an interference pattern of Young's Double Slit (YDS) experiment
Question # 13
To observe interference of light, the condition, which must be met with is that the sources must be
Question # 14
Two sources are said to be coherent if they have
Question # 15
Speed of light in vacuum depends upon
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 -
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F Farzand Shah Farzand Shah 17 - Apr - 2024 01 Min 24 Sec 55/60 -
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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 | 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 | Electromagnetic waves transport |
A. Energy only
B. Momentum only
C. Both A and B
D. None is correct
|
| 3 | In case of point source of light, shape of wavefront is |
A. Spherical
B. Cylindrical
C. Plane
D. None of above
|
| 4 | Light waves are |
A. Transverse waves
B. Longitudinal waves
C. Compressional
D. None of them wave
|
| 5 | Light waves are |
A. Mechanical waves
B. Electromagnetic waves
C. Any of above
D. None of above
|
| 6 | 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
|
| 7 | Two sources are said to be coherent if they have |
A. Same amplitude
B. Same wavelength
C. Definite phase relation with each other
D. None of them
|
| 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 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
|
| 10 | 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
|
Test Questions