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MCQ's Test For Physics ECAT Pre Engineering Chapter 10 Optical Instruments
Try The MCQ's Test For Physics ECAT Pre Engineering Chapter 10 Optical Instruments
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Total Questions15
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Time Allowed20
Physics ECAT Pre Engineering Chapter 10 Optical Instruments
00:00
Question # 1
The speed of the secondary wavelets as mentioned in Huygen's principle is ________ the speed of propagation of the wave itself
Question # 2
The wave nature of light was proposed by
Question # 3
Wavelength of red colour as compared to that of violet colour is
Question # 4
Huygen's principle states that
Question # 5
The locus of all the points in the same phase of vibration is called
Question # 6
Huygen principle is used to determine
Question # 7
In YDS experiment, fringe spacing means the distance between two consecutive _________ fringes
Question # 8
Which one of the followings can act approximately as a source of monochromatic light
Question # 9
Two sources are said to be coherent if they have
Question # 10
Angle between ray of light and the corresponding wavefront is
Question # 11
Frequency of red colour as compared to that of violet colour is
Question # 12
The appearance of colours in the soap (or oil) film results from
Question # 13
Light waves are
Question # 14
Laws of reflection and refraction can also be explained by
Question # 15
Light waves are
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A Abubakar basra 29 - Feb - 2024 00 Min 39 Sec 60/60 -
D Deuspeu 25 - Sep - 2024 00 Min 56 Sec 60/60 -
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H hamza sattar 19 - May - 2024 01 Min 02 Sec 45/60
ECAT Physics Chapter 10 Important MCQ's
| Sr.# | Question | Answer |
|---|---|---|
| 1 | Frequency of red colour as compared to that of violet colour is |
A. Equal
B. Smaller
C. Greater
D. None of these
|
| 2 | Which one of the followings can act approximately as a source of monochromatic light |
A. Neon lamp
B. Fluorescent tube
C. Sodium lamp
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 | Wavelength of light, on the average, is given by |
A. 10-14m
B. 10-10m
C. 10-6m
D. 10-4m
|
| 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 | In YDS experiment, fringe spacing means the distance between two consecutive _________ fringes |
A. Bright
B. Dark
C. Any of A or B
D. None of these
|
| 7 | Electromagnetic waves transport |
A. Energy only
B. Momentum only
C. Both A and B
D. None is correct
|
| 8 | Two 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
|
| 9 | Light waves are |
A. Transverse waves
B. Longitudinal waves
C. Compressional
D. None of them wave
|
| 10 | In an interference pattern of Young's Double Slit (YDS) experiment |
A. Bright fringes are wider than dark fringes
B. Dark fringes are wider than bright fringes
C. Both dark and bright fringes are of equal width
D. Central fringes are wider than the outer fringes
|
Test Questions