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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
Resolving power in mth order diffraction for grating is given by:
Question # 2
To observe interference of light, the condition, which must be met with is that the sources must be:
Question # 3
In case of destructive interference of two waves, the amplitude of the resultant wave will be ____ either of the waves:
Question # 4
Speed of light in vacuum depends upon:
Question # 5
The locus of all the points in the same phase of vibration is called:
Question # 6
The least distance of distinct vision is:
Question # 7
How is the image formed by a convex lens affected if the upper half of the lens is covered with a paper:
Question # 8
The velocity of light in vacuum can be changed by changing
Question # 9
In an interference pattern of Young's double slit(YDS) experiment:
Question # 10
Frequency of red color as compared to that of violet color is:
Question # 11
A magnifier gives an image which is:
Question # 12
To see the minor details of the object by microscope, it should have:
Question # 13
Angle between the ray of light and the corresponding wavefront is:
Question # 14
The distance from eye to near point is taken as:
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 -
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 | Huygen's principles states that: |
A. Light has dual nature
B. Either of these
C. None of these
D. Light travels in straigth line
|
| 2 | The locus of all points in a medium having same phase of vibration is called |
A. Crest
B. Trough
C. Wavelength
D. Wave-front
|
| 3 | Speed of light in vacuum depends upon: |
A. Frequency
B. Wavelength
C. Amplitude
D. None of these
|
| 4 | If the object is placed at 12 cm distance from a convex lens of focal length 6 cm, then we get an image of ____ as that of object: |
A. Double the size
B. Same size
C. Half the size
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 these
|
| 6 | Which one of the following phenomenon cannot be explained on the bases of Huygen's theory |
A. Refraction
B. Reflection
C. Diffraction
D. Formation of spectrum
|
| 7 | To observe interference of light, the condition, which must be met with is that the sources must be: |
A. Monochromatic
B. Phase coherent
C. Both of above
D. None of above
|
| 8 | Frequency of red color as compared to that of violet color is: |
A. Equal
B. Smaller
C. Greater
D. None of these
|
| 9 | The terms phase difference and path difference are: |
A. Same
B. Different
C. Equal
D. None of these
|
| 10 | The focal length of convex lens having magnifying power of 5.55 is: |
A. 5.5 cm
B. 5 cm
C. 4.5 cm
D. 6 cm
|
Test Questions
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