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 light, on the average, is given by

Question # 2

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

Question # 3

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

Question # 4

Speed of light in vacuum depends upon

Question # 5

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

Question # 6

Electromagnetic waves transport

Question # 7

Monochromatic light means wave of

Question # 8

The wave nature of light was proposed by

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

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

Question # 12

Light waves are

Question # 13

Two sources are said to be coherent if they have

Question # 14

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

Question # 15

Light has

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ECAT Physics Chapter 10 Important MCQ's

Sr.# Question Answer
1 Light waves are
A. Transverse waves
B. Longitudinal waves
C. Compressional
D. None of them wave
2 The wave nature of light was proposed by
A. Newton
B. Thomas Young
C. Huygen
D. None of these
3 Frequency of red colour as compared to that of violet colour is
A. Equal
B. Smaller
C. Greater
D. None of these
4 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
5 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
6 The appearance of colours in the soap (or oil) film results from
A. Dispersion
B. Interference
C. Reflection
D. Refraction
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 Angle between ray of light and the corresponding wavefront is
A. 00
B. 600
C. 900
D. 1200
9 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
10 Huygen's principle states that
A. Light travels in straight line
B. Light has dual nature
C. Either of these
D. None of these

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