ECAT Pre Engineering Physics Chapter 10 MCQ Test With Answer

MCQ's Test For Physics ECAT Pre Engineering Chapter 10 Optical Instruments

Try The MCQ's Test For Physics ECAT Pre Engineering Chapter 10 Optical Instruments

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Physics ECAT Pre Engineering Chapter 10 Optical Instruments

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Question # 1

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

Question # 2

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

Question # 3

Speed of light in vacuum depends upon

Question # 4

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

Question # 5

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

Question # 6

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

Question # 7

Light has

Question # 8

Huygen principle is used to determine

Question # 9

Laws of reflection and refraction can also be explained by

Question # 10

Electromagnetic waves transport

Question # 11

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

Question # 12

Huygen's principle states that

Question # 13

Light waves are

Question # 14

The terms phase difference and path difference are

Question # 15

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

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ECAT Physics Chapter 10 Important MCQ's

Sr.# Question Answer
1 Which one of the followings can act approximately as a source of monochromatic light
A. Neon lamp
B. Fluorescent tube
C. Sodium lamp
D. None of these
2 Monochromatic light means wave of
A. Same frequency
B. Same colour
C. Same Wavelength
D. All of them
3 Light has
A. Wave nature
B. Dual nature
C. Particle nature
D. None of them
4 Light waves are
A. Mechanical waves
B. Electromagnetic waves
C. Any of above
D. None of above
5 In case of point source of light, shape of wavefront is
A. Spherical
B. Cylindrical
C. Plane
D. None of above
6 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
7 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
8 The wave nature of light was proposed by
A. Newton
B. Thomas Young
C. Huygen
D. None of these
9 Light waves are
A. Transverse waves
B. Longitudinal waves
C. Compressional
D. None of them wave
10 Speed of light in vacuum depends upon
A. Frequency
B. Wavelength
C. Amplitude
D. None of these

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