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

00:00
Question # 1

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

Question # 2

Light has

Question # 3

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

Question # 4

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

Question # 5

Huygen principle is used to determine

Question # 6

Huygen's principle states that

Question # 7

Laws of reflection and refraction can also be explained by

Question # 8

Two sources are said to be coherent if they have

Question # 9

The terms phase difference and path difference are

Question # 10

Wavelength of light, on the average, is given by

Question # 11

Speed of light in vacuum depends upon

Question # 12

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

Question # 13

Light waves are

Question # 14

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

Question # 15

The wave nature of light was proposed by

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ECAT Physics Chapter 10 Important MCQ's

Sr.# Question Answer
1 The speed of the secondary wavelets as mentioned in Huygen's principle is ________ the speed of propagation of the wave itself
A. Equal to
B. Greater than
C. Smaller than
D. None of these
2 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
3 Light has
A. Wave nature
B. Dual nature
C. Particle nature
D. None of them
4 Light waves are
A. Mechanical waves
B. Electromagnetic waves
C. Any of above
D. None of above
5 The wave nature of light was proposed by
A. Newton
B. Thomas Young
C. Huygen
D. None of these
6 The appearance of colours in the soap (or oil) film results from
A. Dispersion
B. Interference
C. Reflection
D. Refraction
7 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
8 Angle between ray of light and the corresponding wavefront is
A. 00
B. 600
C. 900
D. 1200
9 Huygen's principle states that
A. Light travels in straight line
B. Light has dual nature
C. Either of these
D. None of these
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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