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

Monochromatic light means wave of

Question # 2

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

Question # 3

Huygen's principle states that

Question # 4

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

Question # 5

In YDS experiment, fringe spacing means the distance between two consecutive _________ fringes

Question # 6

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

Question # 7

Light waves are

Question # 8

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

Question # 9

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

Question # 10

Angle between ray of light and the corresponding wavefront is

Question # 11

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

Question # 12

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

Question # 13

Light waves are

Question # 14

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

Question # 15

Huygen principle is used to determine

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ECAT Physics Chapter 10 Important MCQ's

Sr.# Question Answer
1 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
2 Electromagnetic waves transport
A. Energy only
B. Momentum only
C. Both A and B
D. None is correct
3 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
4 Light waves are
A. Mechanical waves
B. Electromagnetic waves
C. Any of above
D. None of above
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 Light waves are
A. Transverse waves
B. Longitudinal waves
C. Compressional
D. None of them wave
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 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
9 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
10 The terms phase difference and path difference are
A. Same
B. Different
C. Equal
D. none of these

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