Home
News
Colleges
Courses
Admission
Lectures
Online Test
Past Papers
Date Sheets
Results
Study Abroad
Jobs
Tutors
More
Apps
MCQ's Test For ECAT Physics Chapter 9 Physical Optics
Try The MCQ's Test For ECAT Physics Chapter 9 Physical Optics
-
Total Questions15
-
Time Allowed20
ECAT Physics Chapter 9 Physical Optics
00:00
Question # 1
In case of point, source of light shape of wavefront is:
Question # 2
The ratio of the diameter of two convex lenses is _____-the ratio of their focal lengths:
Question # 3
Resolving power in mth order diffraction for grating is given by:
Question # 4
A prism splits a beam of white light into seven component colors. This is so because
Question # 5
A grating with high resolving power can distinguish _______ difference in wavelengths :
Question # 6
The image of an object 5 mm length is only 1 cm high. The magnification produced by lens is:
Question # 7
Which one of the following can act approximately as a source of monochromatic light;
Question # 8
With age, least distance of distinct vision:
Question # 9
Monochromatic light means waves of:
Question # 10
The property of light which does not change with the nature of the medium is:
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
When the object lies between F and 2F, the image formed by is formed at:
Question # 13
For the virtual image, option _______ is not correct:
Question # 14
When the object lies between F and 2F, the image formed by is formed at:
Question # 15
The cause of mirage observed in deserts in bright sunlight is due to
Top Scorers Of ECAT Physics Chapter 9 Physical Optics MCQ`s Test
-
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 property of light which does not change with the nature of the medium is: |
A. Frequency
B. Amplitude
C. Wavelength
D. None of these
|
| 2 | The ratio of the diameter of two convex lenses is _____-the ratio of their focal lengths: |
A. Greater than
B. Less than
C. Equal to
D. None of these
|
| 3 | Laws of reflection and refraction can also be explained by: |
A. Particle nature of light
B. Quantum nature of light
C. Wave nature of light
D. Complex nature of light
|
| 4 | Light has: |
A. Wave nature
B. Particle nature
C. Dual nature
D. None of these
|
| 5 | To see the minor details of the object by microscope, it should have: |
A. High magnifying power
B. High resolving power
C. Am objective of larger focal length
D. None of these
|
| 6 | 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
|
| 7 | The locus of all points in a medium having same phase of vibration is called |
A. Crest
B. Trough
C. Wavelength
D. Wave-front
|
| 8 | The velocity of light in vacuum can be changed by changing |
A. Frequency
B. Amplitude
C. Wavelength
D. None of these
|
| 9 | The speed of the secondary wavelets as mentioned in Huygen's principle is _____ the speed of propagation of the wave itself. |
A. Equal to
B. Greater than
C. Smaller than
D. None of these
|
| 10 | In case of point, source of light shape of wavefront is: |
A. Spherical
B. Cylindrical
C. Plane
D. None of these
|
Test Questions