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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
According to Huygen's principle
Question # 2
When the object lies between F and 2F, the image formed by is formed at:
Question # 3
Huygen principle is used to determine:
Question # 4
Which one of the following phenomenon cannot be explained on the bases of Huygen's theory
Question # 5
Least distance of distinct vision of an old man possibly becomes:
Question # 6
The wave nature of light was proposed by:
Question # 7
The property of light which does not change with the nature of the medium is:
Question # 8
The distance from eye to near point is taken as:
Question # 9
A virtual image is formed when object is placed:
Question # 10
In case of point, source of light shape of wavefront is:
Question # 11
A grating with high resolving power can distinguish _______ difference in wavelengths :
Question # 12
The image of an object 5 mm length is only 1 cm high. The magnification produced by lens is:
Question # 13
A grating with high resolving power can distinguish _______ difference in wavelengths :
Question # 14
A prism splits a beam of white light into seven component colors. This is so because
Question # 15
A magnifier gives an image which 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 -
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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 -
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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 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
|
| 2 | When the same object is viewed at a shorter distance, the image on the retina of the eye is _____ the so the object appears: |
A. Greater, smaller
B. Smaller, smaller
C. Smaller, larger
D. Greater, larger
|
| 3 | 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
|
| 4 | A grating with high resolving power can distinguish _______ difference in wavelengths : |
A. Smaller
B. Larger
C. Zero
D. None of these
|
| 5 | For the virtual image, option _______ is not correct: |
A. 1/p = 1/f -1/q
B. 1/f = 1/p -1/q
C. 1/p=1/p-1/f
D. 1/p=1/f+1/q
|
| 6 | Speed of light in vacuum depends upon: |
A. Frequency
B. Wavelength
C. Amplitude
D. None of these
|
| 7 | Huygen principle is used to determine: |
A. Speed of light
B. Location of wavefront
C. About polarized or unpolarized light
D. None of them
|
| 8 | A grating with high resolving power can distinguish _______ difference in wavelengths : |
A. Larger
B. Zero
C. None of these
D. Smaller
|
| 9 | With age, least distance of distinct vision: |
A. Increases
B. Decreases
C. Is not affected
D. None is correct
|
| 10 | 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
|
Test Questions
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