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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 case of constructive interference of two waves, the amplitude of the resultant wave is _______ either of the waves:
Question # 2
When the object lies between F and 2F, the image formed by is formed at:
Question # 3
Conventionally, all the distance p, q, f are measured from _____ of the lens:
Question # 4
A ray passing through optical center of a lens, after refraction:
Question # 5
When the same object is viewed at a shorter distance, the image on the retina of the eye is _____ the so the object appears:
Question # 6
The superposition of the two waves of same frequency and amplitude travelling in the same direction gives to an effect called
Question # 7
Resolving power in mth order diffraction for grating is given by:
Question # 8
A magnifier gives an image which is:
Question # 9
According to Huygen's principle
Question # 10
In case of point, source of light shape of wavefront is:
Question # 11
A prism splits a beam of white light into seven component colors. This is so because
Question # 12
The property of light which does not change with the nature of the medium is:
Question # 13
The terms phase difference and path difference are:
Question # 14
The contrast in the fringes in an interference pattern depends upon
Question # 15
Light appears to travel in straight line because
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 | In YDS experiment, fringe spacing means the distance between two consecutive ____fringes. |
A. Bright
B. Dark
C. Any of A and B
D. None of these
|
| 2 | The property of light which does not change with the nature of the medium is: |
A. Frequency
B. Amplitude
C. Wavelength
D. None of these
|
| 3 | The wave nature of light was proposed by: |
A. Newton
B. Thomas Young
C. Huygen
D. None of these
|
| 4 | 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
|
| 5 | Angle between the ray of light and the corresponding wavefront is: |
A. 0°
B. 60°
C. 90°
D. 120°
|
| 6 | If the object and its image are located at a distance of 5 cm from the focus of a convex lens, the focus length of the lens will be: |
A. 5 cm
B. 10 cm
C. 20 cm
D. 25 cm
|
| 7 | The ratio of the size of the image to that of object is called: |
A. Focal length
B. Aperture
C. Linear magnification
D. Principal axis
|
| 8 | Speed of light in vacuum depends upon: |
A. Frequency
B. Wavelength
C. Amplitude
D. None of these
|
| 9 | 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
|
| 10 | The image of an object 5 mm length is only 1 cm high. The magnification produced by lens is: |
A. 1
B. 0.2
C. 2
D. 0.1
|
Test Questions