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

Question # 2

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

Question # 3

A line which represents the direction of travel of a wave is known as

Question # 4

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

Question # 5

Electromagnetic waves transport

Question # 6

Huygen principle is used to determine

Question # 7

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

Question # 8

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

Question # 9

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

Question # 10

The terms phase difference and path difference are

Question # 11

Huygen's principle states that

Question # 12

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

Question # 13

The wave nature of light was proposed by

Question # 14

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

Question # 15

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

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ECAT Physics Chapter 10 Important MCQ's

Sr.# Question Answer
1 Angle between ray of light and the corresponding wavefront is
A. 00
B. 600
C. 900
D. 1200
2 The appearance of colours in the soap (or oil) film results from
A. Dispersion
B. Interference
C. Reflection
D. Refraction
3 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
4 Frequency of red colour as compared to that of violet colour is
A. Equal
B. Smaller
C. Greater
D. None of these
5 Wavelength of red colour as compared to that of violet colour is
A. Smaller
B. Longer
C. Equal
D. None of these
6 Huygen principle is used to determine
A. Speed of light
B. Location of wavefront
C. About polarized and unpolarized light
D. None of them
7 Monochromatic light means wave of
A. Same frequency
B. Same colour
C. Same Wavelength
D. All of them
8 Huygen's principle states that
A. Light travels in straight line
B. Light has dual nature
C. Either of these
D. None of these
9 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
10 Light has
A. Wave nature
B. Dual nature
C. Particle nature
D. None of them

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