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

Angle between ray of light and the corresponding wavefront is

Question # 3

In an interference pattern of Young's Double Slit (YDS) experiment

Question # 4

Electromagnetic waves transport

Question # 5

Light waves are

Question # 6

Huygen's principle states that

Question # 7

Wavelength of light, on the average, is given by

Question # 8

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

Question # 9

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

Question # 10

Speed of light in vacuum depends upon

Question # 11

Monochromatic light means wave of

Question # 12

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

Question # 13

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

Question # 14

Laws of reflection and refraction can also be explained by

Question # 15

Light waves are

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ECAT Physics Chapter 10 Important MCQ's

Sr.# Question Answer
1 Monochromatic light means wave of
A. Same frequency
B. Same colour
C. Same Wavelength
D. All of them
2 Huygen principle is used to determine
A. Speed of light
B. Location of wavefront
C. About polarized and unpolarized light
D. None of them
3 Wavelength of red colour as compared to that of violet colour is
A. Smaller
B. Longer
C. Equal
D. None of these
4 The terms phase difference and path difference are
A. Same
B. Different
C. Equal
D. none of these
5 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
6 Wavelength of light, on the average, is given by
A. 10-14m
B. 10-10m
C. 10-6m
D. 10-4m
7 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
8 When the source of light is at very large distance, the shape of wavefront is
A. Spherical
B. Cylindrical
C. Plane
D. None of these
9 Light waves are
A. Mechanical waves
B. Electromagnetic waves
C. Any of above
D. None of above
10 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

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