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

Light waves are

Question # 2

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

Question # 3

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

Question # 4

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

Question # 5

Huygen principle is used to determine

Question # 6

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

Question # 7

Wavelength of light, on the average, is given by

Question # 8

Laws of reflection and refraction can also be explained by

Question # 9

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

Question # 10

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

Question # 11

Light has

Question # 12

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

Question # 13

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

Question # 14

In case of point source of light, shape of wavefront is

Question # 15

Light waves are

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ECAT Physics Chapter 10 Important MCQ's

Sr.# Question Answer
1 The locus of all the points in the same phase of vibration is called
A. Wave pocket
B. Wavefront
C. Wave number
D. None of these
2 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
3 Angle between ray of light and the corresponding wavefront is
A. 00
B. 600
C. 900
D. 1200
4 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
5 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
6 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
7 Electromagnetic waves transport
A. Energy only
B. Momentum only
C. Both A and B
D. None is correct
8 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
9 Light waves are
A. Mechanical waves
B. Electromagnetic waves
C. Any of above
D. None of above
10 Wavelength of light, on the average, is given by
A. 10-14m
B. 10-10m
C. 10-6m
D. 10-4m

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