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

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

Question # 2

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

Question # 3

Light waves are

Question # 4

The terms phase difference and path difference are

Question # 5

Electromagnetic waves transport

Question # 6

Two sources are said to be coherent if they have

Question # 7

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

Question # 8

Light waves are

Question # 9

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

Question # 10

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

Question # 11

A line which represents the direction of travel of a wave is known as

Question # 12

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

Question # 13

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

Question # 14

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

Question # 15

Speed of light in vacuum depends upon

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ECAT Physics Chapter 10 Important MCQ's

Sr.# Question Answer
1 Light waves are
A. Mechanical waves
B. Electromagnetic waves
C. Any of above
D. None of above
2 Frequency of red colour as compared to that of violet colour is
A. Equal
B. Smaller
C. Greater
D. None of these
3 Light has
A. Wave nature
B. Dual nature
C. Particle nature
D. None of them
4 The wave nature of light was proposed by
A. Newton
B. Thomas Young
C. Huygen
D. None of these
5 Electromagnetic waves transport
A. Energy only
B. Momentum only
C. Both A and B
D. None is correct
6 Light waves are
A. Transverse waves
B. Longitudinal waves
C. Compressional
D. None of them wave
7 The speed of the secondary wavelets as mentioned in Huygen's principle is ________ the speed of propagation of the wave itself
A. Equal to
B. Greater than
C. Smaller than
D. None of these
8 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
9 Wavelength of light, on the average, is given by
A. 10-14m
B. 10-10m
C. 10-6m
D. 10-4m
10 Angle between ray of light and the corresponding wavefront is
A. 00
B. 600
C. 900
D. 1200

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