Home
News
Colleges
Courses
Admission
Lectures
Online Test
Past Papers
Date Sheets
Results
Study Abroad
Jobs
Tutors
More
Apps
.jpg)
MCQ's Test For Physics ECAT Pre Engineering Chapter 9 Physical Optics
Try The MCQ's Test For Physics ECAT Pre Engineering Chapter 9 Physical Optics
-
Total Questions15
-
Time Allowed20
Physics ECAT Pre Engineering Chapter 9 Physical Optics
00:00
Question # 1
Light waves are:
Question # 2
The cause of mirage observed in deserts in bright sunlight is due to
Question # 3
Huygen's principles states that:
Question # 4
The image of the tip of a needle is never sharp because of
Question # 5
A grating with high resolving power can distinguish _______ difference in wavelengths :
Question # 6
With age, least distance of distinct vision:
Question # 7
In an interference pattern of Young's double slit(YDS) experiment:
Question # 8
Wave length of light, on the average, is given by:
Question # 9
The wave nature of light was proposed by:
Question # 10
To observe interference of light, the condition, which must be met with is that the sources must be:
Question # 11
Which one of the following can act approximately as a source of monochromatic light;
Question # 12
A convex lens acts as diverging lens when the object is placed:
Question # 13
To see the minor details of the object by microscope, it should have:
Question # 14
A grating with high resolving power can distinguish _______ difference in wavelengths :
Question # 15
When a source of light isat very large distance,the shape of wavefront is:
Top Scorers Of Physics ECAT Pre Engineering Chapter 9 Physical Optics MCQ`s Test
-
F Farzand Shah Farzand Shah 17 - Apr - 2024 01 Min 00 Sec 60/60 -
D Deuspeu 25 - Sep - 2024 01 Min 40 Sec 60/60 -
U Umarkhan35429@gmail.com Khan 04 - May - 2024 05 Min 00 Sec 60/60 -
H Haq Nawaz 16 - May - 2024 02 Min 31 Sec 55/60 -
M M Saifullah 20 - Jul - 2024 04 Min 06 Sec 55/60 -
D Danish Mehmood Awan 08 - Mar - 2024 04 Min 25 Sec 55/60 -
M moeez farooq 06 - Mar - 2024 43 Min 27 Sec 55/60 -
M M Umer Arain 10 - Nov - 2024 00 Min 15 Sec 50/60 -
A Adan Zahra 14 - Mar - 2024 01 Min 22 Sec 50/60 -
H Huzaifa Asim 25 - May - 2024 01 Min 32 Sec 50/60 -
A Arian Ahmed 06 - Mar - 2024 00 Min 03 Sec 45/60 -
A afzal ibrahim 06 - Mar - 2024 01 Min 55 Sec 45/60 -
A Ayesha Sohail 03 - Jun - 2024 03 Min 04 Sec 45/60 -
A Alishba Dabeer 02 - Jun - 2024 03 Min 25 Sec 45/60 -
T Tamshi Sohail 21 - Apr - 2024 06 Min 48 Sec 45/60
ECAT Physics Chapter 9 Important MCQ's
| Sr.# | Question | Answer |
|---|---|---|
| 1 | Light appears to travel in straight line because |
A. It is not absorbed by the atmosphere
B. It is refracted by the atmosphere
C. Its wavelength is very small
D. Its velocity is very large
|
| 2 | To sources are said to be coherent if they have: |
A. Same amplitude
B. Same wavelength
C. Definite phase relation with each other
D. None of them
|
| 3 | The least distance of distinct vision is: |
A. 10 cm
B. 25 cm
C. 50 cm
D. 100 cm
|
| 4 | Huygen principle is used to determine: |
A. Speed of light
B. Location of wavefront
C. About polarized or unpolarized light
D. None of them
|
| 5 | In case of destructive interference of two waves, the amplitude of the resultant wave will be ____ either of the waves: |
A. Greater than
B. Smaller than
C. Equal to
D. None of these
|
| 6 | When the object lies between F and 2F, the image formed by is formed at: |
A. Real
B. Virtual
C. Diminished
D. Erect
|
| 7 | The cause of mirage observed in deserts in bright sunlight is due to |
A. Refraction of light
B. Reflection of light
C. Scattering of light
D. Total internal reflection of light
|
| 8 | A grating with high resolving power can distinguish _______ difference in wavelengths : |
A. Smaller
B. Larger
C. Zero
D. None of these
|
| 9 | 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
|
| 10 | Wave length of light, on the average, is given by: |
A. 10-14m
B. 10-10m
C. 10-6m
D. 10-4m
|
Test Questions