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MCQ's Test For ECAT Physics Chapter 9 Physical Optics
Try The MCQ's Test For ECAT Physics Chapter 9 Physical Optics
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Total Questions15
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Time Allowed20
ECAT Physics Chapter 9 Physical Optics
00:00
Question # 1
Laws of reflection and refraction can also be explained by:
Question # 2
Electromagnetic waves transport:
Question # 3
Huygen's theory cannot explain
Question # 4
A grating with high resolving power can distinguish _______ difference in wavelengths :
Question # 5
In case of constructive interference of two waves, the amplitude of the resultant wave is _______ either of the waves:
Question # 6
A virtual image is formed when object is placed:
Question # 7
According to Huygen's principle
Question # 8
Speed of light in vacuum depends upon:
Question # 9
The ratio of the size of the image to that of object is called:
Question # 10
In case of destructive interference of two waves, the amplitude of the resultant wave will be ____ either of the waves:
Question # 11
A line which represents the direction of travel of a wave is known as:
Question # 12
To see the minor details of the object by microscope, it should have:
Question # 13
Light appears to travel in straight line because
Question # 14
The speed of the secondary wavelets as mentioned in Huygen's principle is _____ the speed of propagation of the wave itself.
Question # 15
When a source of light isat very large distance,the shape of wavefront is:
Top Scorers Of ECAT Physics Chapter 9 Physical Optics MCQ`s Test
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H Heer 21 - Jan - 2024 00 Min 29 Sec 60/60 -
V Vertex Gaming 16 - Jul - 2024 00 Min 47 Sec 55/60 -
T Tasser Haider 31 - May - 2024 01 Min 13 Sec 50/60 -
M Maham Mehar 31 - Jul - 2024 02 Min 42 Sec 50/60 -
M Manoush Fatima 31 - May - 2024 03 Min 21 Sec 50/60 -
A Abdullah Baloch 27 - Jul - 2024 03 Min 48 Sec 50/60 -
E Esha Azeem 03 - Dec - 2023 15 Min 03 Sec 50/60 -
M Muhammad Hashim 02 - Jun - 2024 02 Min 01 Sec 45/60 -
A Ayan Shuaib 29 - Jan - 2024 02 Min 23 Sec 45/60 -
M Muhammad Abdur.Rahman Khan 30 - Aug - 2024 03 Min 51 Sec 45/60 -
H Hira Maqsood 20 - Feb - 2024 07 Min 03 Sec 45/60 -
S suzi 09 - Feb - 2026 01 Min 42 Sec 44/60 -
M M.Faiq 22 - May - 2024 02 Min 46 Sec 40/60 -
M Muhammad Sadaqat 10 - Mar - 2023 03 Min 54 Sec 40/60 -
H Haseeb Ur Rehman raja 25 - Jun - 2024 05 Min 10 Sec 40/60
ECAT Physics Chapter 9 Important MCQ's
| Sr.# | Question | Answer |
|---|---|---|
| 1 | The wave nature of light was proposed by: |
A. Newton
B. Thomas Young
C. Huygen
D. None of these
|
| 2 | Electromagnetic waves transport: |
A. Energy only
B. Momentum only
C. Both A and B are correct
D. None of is correct
|
| 3 | In case of point, source of light shape of wavefront is: |
A. Spherical
B. Cylindrical
C. Plane
D. None of these
|
| 4 | Speed of light in vacuum depends upon: |
A. Frequency
B. Wavelength
C. Amplitude
D. None of these
|
| 5 | A convex lens acts as diverging lens when the object is placed: |
A. Beyond 2F
B. At 2F
C. With focal length
D. Between F and 2F
|
| 6 | Huygen principle is used to determine: |
A. Speed of light
B. Location of wavefront
C. About polarized or unpolarized light
D. None of them
|
| 7 | A grating with high resolving power can distinguish _______ difference in wavelengths : |
A. Larger
B. Zero
C. None of these
D. Smaller
|
| 8 | If the object is situated at focus of a convex lens, then its image is formed at: |
A. F
B. 2F
C. Infinity
D. None of these
|
| 9 | Light waves are: |
A. Transverse wave
B. Longitudinal wave
C. Compressional wave
D. None of them
|
| 10 | A grating with high resolving power can distinguish _______ difference in wavelengths : |
A. Smaller
B. Larger
C. Zero
D. None of these
|
Test Questions
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