ECAT Pre Computer Science Chapter 10 MCQ Test With Answer

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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ECAT Physics Chapter 10 Optical Instruments

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Question # 1

Laws of reflection and refraction can also be explained by

Question # 2

The locus of all the points in the same phase of vibration is called

Question # 3

Which one of the followings can act approximately as a source of monochromatic light

Question # 4

When the source of light is at very large distance, the shape of wavefront is

Question # 5

Light waves are

Question # 6

The property of light which does not change with the nature of the medium is

Question # 7

The wave nature of light was proposed by

Question # 8

To observe interference of light, the condition, which must be met with is that the sources must be

Question # 9

Speed of light in vacuum depends upon

Question # 10

The speed of the secondary wavelets as mentioned in Huygen's principle is ________ the speed of propagation of the wave itself

Question # 11

Wavelength of red colour as compared to that of violet colour is

Question # 12

Two sources are said to be coherent if they have

Question # 13

In case of constructive interference of two waves, the amplitude of the resultant wave is __________ either of the waves

Question # 14

In case of destructive interference of two waves, the amplitude of the resultant wave will be __________ either of the waves.

Question # 15

Wavelength of light, on the average, is given by

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ECAT Physics Chapter 10 Important MCQ's

Sr.# Question Answer
1 Angle between ray of light and the corresponding wavefront is
A. 00
B. 600
C. 900
D. 1200
2 Light has
A. Wave nature
B. Dual nature
C. Particle nature
D. None of them
3 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
4 Wavelength of red colour as compared to that of violet colour is
A. Smaller
B. Longer
C. Equal
D. None of these
5 In case of constructive interference of two waves, the amplitude of the resultant wave is __________ either of the waves
A. Greater than
B. Equal to
C. Smaller than
D. None of these
6 Speed of light in vacuum depends upon
A. Frequency
B. Wavelength
C. Amplitude
D. None of these
7 Light waves are
A. Mechanical waves
B. Electromagnetic waves
C. Any of above
D. None of above
8 Wavelength of light, on the average, is given by
A. 10-14m
B. 10-10m
C. 10-6m
D. 10-4m
9 To observe interference of light, the condition, which must be met with is that the sources must be
A. Monochromatic
B. Phase coherent
C. Both of above
D. None of above
10 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

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