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

The appearance of colours in the soap (or oil) film results from

Question # 2

The terms phase difference and path difference are

Question # 3

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

Question # 4

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

Question # 5

Light waves are

Question # 6

Light has

Question # 7

Laws of reflection and refraction can also be explained by

Question # 8

Light waves are

Question # 9

Monochromatic light means wave of

Question # 10

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

Question # 11

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

Question # 12

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

Question # 13

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

Question # 14

In an interference pattern of Young's Double Slit (YDS) experiment

Question # 15

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

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ECAT Physics Chapter 10 Important MCQ's

Sr.# Question Answer
1 Monochromatic light means wave of
A. Same frequency
B. Same colour
C. Same Wavelength
D. All of them
2 Wavelength of red colour as compared to that of violet colour is
A. Smaller
B. Longer
C. Equal
D. None of these
3 In case of point source of light, shape of wavefront is
A. Spherical
B. Cylindrical
C. Plane
D. None of above
4 Light waves are
A. Transverse waves
B. Longitudinal waves
C. Compressional
D. None of them wave
5 Huygen's principle states that
A. Light travels in straight line
B. Light has dual nature
C. Either of these
D. None of these
6 Electromagnetic waves transport
A. Energy only
B. Momentum only
C. Both A and B
D. None is correct
7 Huygen principle is used to determine
A. Speed of light
B. Location of wavefront
C. About polarized and unpolarized light
D. None of them
8 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
9 Light has
A. Wave nature
B. Dual nature
C. Particle nature
D. None of them
10 The appearance of colours in the soap (or oil) film results from
A. Dispersion
B. Interference
C. Reflection
D. Refraction

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