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MCQ's Test For ECAT Physics Chapter 10 Optical Instruments
Try The MCQ's Test For ECAT Physics Chapter 10 Optical Instruments
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Total Questions15
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Time Allowed20
ECAT Physics Chapter 10 Optical Instruments
00:00
Question # 1
Wavelength of red colour as compared to that of violet colour is
Question # 2
Two sources are said to be coherent if they have
Question # 3
In YDS experiment, fringe spacing means the distance between two consecutive _________ fringes
Question # 4
In case of point source of light, shape of wavefront is
Question # 5
The property of light which does not change with the nature of the medium is
Question # 6
A line which represents the direction of travel of a wave is known as
Question # 7
The appearance of colours in the soap (or oil) film results from
Question # 8
Frequency of red colour as compared to that of violet colour is
Question # 9
The speed of the secondary wavelets as mentioned in Huygen's principle is ________ the speed of propagation of the wave itself
Question # 10
Light waves are
Question # 11
Huygen principle is used to determine
Question # 12
When the source of light is at very large distance, the shape of wavefront is
Question # 13
Light waves are
Question # 14
The appearance of colours in the soap (or oil) film results from
Question # 15
The locus of all the points in the same phase of vibration is called
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A Ayema Khalid 12 - Feb - 2023 10 Min 50 Sec 55/60
ECAT Physics Chapter 10 Important MCQ's
| Sr.# | Question | Answer |
|---|---|---|
| 1 | The appearance of colours in the soap (or oil) film results from |
A. Dispersion
B. Interference
C. Reflection
D. Refraction
|
| 2 | Electromagnetic waves transport |
A. Energy only
B. Momentum only
C. Both A and B
D. None is correct
|
| 3 | Wavelength of red colour as compared to that of violet colour is |
A. Smaller
B. Longer
C. Equal
D. None of these
|
| 4 | Monochromatic light means wave of |
A. Same frequency
B. Same colour
C. Same Wavelength
D. All of them
|
| 5 | A line which represents the direction of travel of a wave is known as |
A. Spherical wavefront
B. Locus
C. Ray
D. Either B or C
|
| 6 | Light has |
A. Wave nature
B. Dual nature
C. Particle nature
D. None of them
|
| 7 | When the source of light is at very large distance, the shape of wavefront is |
A. Spherical
B. Cylindrical
C. Plane
D. None of these
|
| 8 | The wave nature of light was proposed by |
A. Newton
B. Thomas Young
C. Huygen
D. None of these
|
| 9 | In case of point source of light, shape of wavefront is |
A. Spherical
B. Cylindrical
C. Plane
D. None of above
|
| 10 | Speed of light in vacuum depends upon |
A. Frequency
B. Wavelength
C. Amplitude
D. None of these
|
Test Questions