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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
In an interference pattern of Young's double slit(YDS) experiment:
Question # 2
Light has:
Question # 3
Electromagnetic waves transport:
Question # 4
In YDS experiment, fringe spacing means the distance between two consecutive ____fringes.
Question # 5
A convex lens acts as diverging lens when the object is placed:
Question # 6
The locus of all the points in the same phase of vibration is called:
Question # 7
Laws of reflection and refraction can also be explained by:
Question # 8
The image of an object 5 mm length is only 1 cm high. The magnification produced by lens is:
Question # 9
A ray passing through optical center of a lens, after refraction:
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
With age, least distance of distinct vision:
Question # 13
A grating with high resolving power can distinguish _______ difference in wavelengths :
Question # 14
The ratio of the diameter of two convex lenses is _____-the ratio of their focal lengths:
Question # 15
The magnifier forms a virtual image of the object at:
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 -
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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 | Which one the following gives three regions of electromagnetic spectrum in order of increasing wavelength? |
A. Gamma rays, micro waves, visible light
B. Radio waves, ultraviolet waves, X-rays
C. Ultraviolet rays, infrared rays, micro waves
D. Visible light, gamma rays, radio waves
|
| 2 | With age, least distance of distinct vision: |
A. Increases
B. Decreases
C. Is not affected
D. None is correct
|
| 3 | Light waves are: |
A. Transverse wave
B. Longitudinal wave
C. Compressional wave
D. None of them
|
| 4 | Conventionally, all the distance p, q, f are measured from _____ of the lens: |
A. Focus
B. Optical center
C. Edges
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 | When a source of light isat very large distance,the shape of wavefront is: |
A. Spherical
B. Cylindrical
C. Plane
D. None of these
|
| 7 | When the object lies between F and 2F, the image formed by is formed at: |
A. Real
B. Virtual
C. Diminished
D. Erect
|
| 8 | Least distance of distinct vision of an old man possibly becomes: |
A. A little less than 25 cm
B. A little more than 25 cm
C. Much less than 25 cm
D. None of these
|
| 9 | The appearance of the colour in the soap (oil) film results from: |
A. Dispersion
B. Interference
C. Reflection
D. Refraction
|
| 10 | Speed of light in vacuum depends upon: |
A. Frequency
B. Wavelength
C. Amplitude
D. None of these
|
Test Questions