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

Light has

Question # 2

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

Question # 3

Electromagnetic waves transport

Question # 4

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

Question # 5

Light waves are

Question # 6

Light waves are

Question # 7

Two sources are said to be coherent if they have

Question # 8

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

Question # 9

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

Question # 10

Monochromatic light means wave of

Question # 11

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

Question # 12

The wave nature of light was proposed by

Question # 13

Wavelength of light, on the average, is given by

Question # 14

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

Question # 15

Laws of reflection and refraction can also be explained by

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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 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 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
5 Electromagnetic waves transport
A. Energy only
B. Momentum only
C. Both A and B
D. None is correct
6 Wavelength of light, on the average, is given by
A. 10-14m
B. 10-10m
C. 10-6m
D. 10-4m
7 Frequency of red colour as compared to that of violet colour is
A. Equal
B. Smaller
C. Greater
D. None of these
8 Light waves are
A. Transverse waves
B. Longitudinal waves
C. Compressional
D. None of them wave
9 The appearance of colours in the soap (or oil) film results from
A. Dispersion
B. Interference
C. Reflection
D. Refraction
10 Huygen principle is used to determine
A. Speed of light
B. Location of wavefront
C. About polarized and unpolarized light
D. None of them

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