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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
Light appears to travel in straight line because
Question # 2
In an interference pattern of Young's double slit(YDS) experiment:
Question # 3
Conventionally, all the distance p, q, f are measured from _____ of the lens:
Question # 4
Wave length of that color as compared to that of violet color is:
Question # 5
The magnifier forms a virtual image of the object at:
Question # 6
A convex lens acts as diverging lens when the object is placed:
Question # 7
A grating with high resolving power can distinguish _______ difference in wavelengths :
Question # 8
Huygen's principles states that:
Question # 9
Speed of light in vacuum depends upon:
Question # 10
A line which represents the direction of travel of a wave is known as:
Question # 11
How is the image formed by a convex lens affected if the upper half of the lens is covered with a paper:
Question # 12
Least distance of distinct vision of an old man possibly becomes:
Question # 13
The ratio of the size of the image to that of object is called:
Question # 14
Light waves are:
Question # 15
With age, least distance of distinct vision:
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 locus of all points in a medium having same phase of vibration is called |
A. Crest
B. Trough
C. Wavelength
D. Wave-front
|
| 2 | Light waves are: |
A. Transverse wave
B. Longitudinal wave
C. Compressional wave
D. None of them
|
| 3 | How is the image formed by a convex lens affected if the upper half of the lens is covered with a paper: |
A. The upper half of the image is cut off
B. The brightness of the image is reduced
C. The brightness of the image is increased
D. No effect at all
|
| 4 | Resolving power in mth order diffraction for grating is given by: |
A. R = N/m
B. R = m/N
C. R = N x m
D. None of these
|
| 5 | The terms phase difference and path difference are: |
A. Same
B. Different
C. Equal
D. None of these
|
| 6 | Angle between the ray of light and the corresponding wavefront is: |
A. 0°
B. 60°
C. 90°
D. 120°
|
| 7 | A prism splits a beam of white light into seven component colors. This is so because |
A. Phase of different colors is different
B. Amplitude of different colors is different
C. Wavelength of different colors is different
D. Velocity of different colors is different
|
| 8 | When the object lies between F and 2F, the image formed by is formed at: |
A. Real
B. Virtual
C. Diminished
D. Erect
|
| 9 | Huygen principle is used to determine: |
A. Speed of light
B. Location of wavefront
C. About polarized or unpolarized light
D. None of them
|
| 10 | Certain light of wavelength 600 nm is used to view an object under the microscope. If the aperture of its objective is 1.22 cm, then the limiting angle of resolution will be: |
A. 6 x 10-5rad
B. 7 x 10-5rad
C. 8 x 10-5rad
D. None of these
|
Test Questions
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