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

Wavelength of light, on the average, is given by

Question # 2

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

Question # 3

Laws of reflection and refraction can also be explained by

Question # 4

Light has

Question # 5

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

Question # 6

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

Question # 7

The wave nature of light was proposed by

Question # 8

Electromagnetic waves transport

Question # 9

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

Question # 10

Monochromatic light means wave of

Question # 11

Light waves are

Question # 12

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

Question # 13

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

Question # 14

Light waves are

Question # 15

Angle between ray of light and the corresponding wavefront is

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ECAT Physics Chapter 10 Important MCQ's

Sr.# Question Answer
1 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
2 The wave nature of light was proposed by
A. Newton
B. Thomas Young
C. Huygen
D. None of these
3 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
4 Speed of light in vacuum depends upon
A. Frequency
B. Wavelength
C. Amplitude
D. None of these
5 Light has
A. Wave nature
B. Dual nature
C. Particle nature
D. None of them
6 Wavelength of red colour as compared to that of violet colour is
A. Smaller
B. Longer
C. Equal
D. None of these
7 In YDS experiment, fringe spacing means the distance between two consecutive _________ fringes
A. Bright
B. Dark
C. Any of A or B
D. None of these
8 In case of point source of light, shape of wavefront is
A. Spherical
B. Cylindrical
C. Plane
D. None of above
9 Frequency of red colour as compared to that of violet colour is
A. Equal
B. Smaller
C. Greater
D. None of these
10 The terms phase difference and path difference are
A. Same
B. Different
C. Equal
D. none of these

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