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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
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Total Questions15
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Time Allowed20
Physics ECAT Pre Engineering Chapter 9 Physical Optics
00:00
Question # 1
The focal length of convex lens having magnifying power of 5.55 is:
Question # 2
Frequency of red color as compared to that of violet color is:
Question # 3
To observe interference of light, the condition, which must be met with is that the sources must be:
Question # 4
The size of the image is maximum when its distance from the magnifying glass is:
Question # 5
In case of point, source of light shape of wavefront is:
Question # 6
Huygen's principles states that:
Question # 7
When the object lies between F and 2F, the image formed by is formed at:
Question # 8
A ray passing through optical center of a lens, after refraction:
Question # 9
Light waves are:
Question # 10
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 # 11
To sources are said to be coherent if they have:
Question # 12
The least distance of distinct vision is:
Question # 13
If yellow light emitted by sodium lamp in Young's double slit experiment is replaced by blue light of the same intensity
Question # 14
A line which represents the direction of travel of a wave is known as:
Question # 15
In the formula R = N x m for diffraction grating, N denotes:
Top Scorers Of Physics ECAT Pre Engineering Chapter 9 Physical Optics MCQ`s Test
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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 | In case of point, source of light shape of wavefront is: |
A. Spherical
B. Cylindrical
C. Plane
D. None of these
|
| 2 | 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
|
| 3 | 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
|
| 4 | Wave length of light, on the average, is given by: |
A. 10-14m
B. 10-10m
C. 10-6m
D. 10-4m
|
| 5 | The least distance of distinct vision is: |
A. 10 cm
B. 25 cm
C. 50 cm
D. 100 cm
|
| 6 | The terms phase difference and path difference are: |
A. Same
B. Different
C. Equal
D. None of these
|
| 7 | If the object is situated at focus of a convex lens, then its image is formed at: |
A. F
B. 2F
C. Infinity
D. None of these
|
| 8 | The size of the image is maximum when its distance from the magnifying glass is: |
A. 0.10 m
B. 0.15 m
C. 0.20 m
D. 0.25 m
|
| 9 | Wave length of that color as compared to that of violet color is: |
A. Smaller
B. Longer
C. Equal
D. None of these
|
| 10 | Certain light of wavelength 600 nm is used to view an object under the microscope. If the aperture of its objective is 1.22 cm, then the limiting angle of resolution will be: |
A. 6 x 10-5rad
B. 7 x 10-5rad
C. 8 x 10-5rad
D. None of these
|
Test Questions
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