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

00:00
Question # 1

Light waves are

Question # 2

Huygen principle is used to determine

Question # 3

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

Question # 4

Angle between ray of light and the corresponding wavefront is

Question # 5

Laws of reflection and refraction can also be explained by

Question # 6

The wave nature of light was proposed by

Question # 7

The terms phase difference and path difference are

Question # 8

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

Question # 9

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

Question # 10

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

Question # 11

Electromagnetic waves transport

Question # 12

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

Question # 13

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

Question # 14

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

Question # 15

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

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ECAT Physics Chapter 10 Important MCQ's

Sr.# Question Answer
1 Light waves are
A. Transverse waves
B. Longitudinal waves
C. Compressional
D. None of them wave
2 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
3 In case of destructive interference of two waves, the amplitude of the resultant wave will be __________ either of the waves.
A. Greater than
B. Smaller than
C. Equal to
D. None of these
4 In case of point source of light, shape of wavefront is
A. Spherical
B. Cylindrical
C. Plane
D. None of above
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 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
7 Speed of light in vacuum depends upon
A. Frequency
B. Wavelength
C. Amplitude
D. None of these
8 Angle between ray of light and the corresponding wavefront is
A. 00
B. 600
C. 900
D. 1200
9 Wavelength of light, on the average, is given by
A. 10-14m
B. 10-10m
C. 10-6m
D. 10-4m
10 Wavelength of red colour as compared to that of violet colour is
A. Smaller
B. Longer
C. Equal
D. None of these

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