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 terms phase difference and path difference are

Question # 2

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

Question # 3

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

Question # 4

Two sources are said to be coherent if they have

Question # 5

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

Question # 6

Monochromatic light means wave of

Question # 7

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

Question # 8

Speed of light in vacuum depends upon

Question # 9

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

Question # 10

Light waves are

Question # 11

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

Question # 12

Huygen's principle states that

Question # 13

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

Question # 14

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

Question # 15

Huygen principle is used to determine

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ECAT Physics Chapter 10 Important MCQ's

Sr.# Question Answer
1 Huygen's principle states that
A. Light travels in straight line
B. Light has dual nature
C. Either of these
D. None of these
2 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
3 Angle between ray of light and the corresponding wavefront is
A. 00
B. 600
C. 900
D. 1200
4 Electromagnetic waves transport
A. Energy only
B. Momentum only
C. Both A and B
D. None is correct
5 Frequency of red colour as compared to that of violet colour is
A. Equal
B. Smaller
C. Greater
D. None of these
6 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
7 Light has
A. Wave nature
B. Dual nature
C. Particle nature
D. None of them
8 The appearance of colours in the soap (or oil) film results from
A. Dispersion
B. Interference
C. Reflection
D. Refraction
9 Wavelength of red colour as compared to that of violet colour is
A. Smaller
B. Longer
C. Equal
D. None of these
10 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

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