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

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

Question # 2

Angle between ray of light and the corresponding wavefront is

Question # 3

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

Question # 4

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

Question # 5

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

Question # 6

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

Question # 7

The terms phase difference and path difference are

Question # 8

Huygen's principle states that

Question # 9

Light has

Question # 10

Monochromatic light means wave of

Question # 11

The wave nature of light was proposed by

Question # 12

Light waves are

Question # 13

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

Question # 14

Light waves are

Question # 15

Wavelength of light, on the average, is given by

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ECAT Physics Chapter 10 Important MCQ's

Sr.# Question Answer
1 Huygen principle is used to determine
A. Speed of light
B. Location of wavefront
C. About polarized and unpolarized light
D. None of them
2 Wavelength of red colour as compared to that of violet colour is
A. Smaller
B. Longer
C. Equal
D. None of these
3 Electromagnetic waves transport
A. Energy only
B. Momentum only
C. Both A and B
D. None is correct
4 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
5 Angle between ray of light and the corresponding wavefront is
A. 00
B. 600
C. 900
D. 1200
6 The wave nature of light was proposed by
A. Newton
B. Thomas Young
C. Huygen
D. None of these
7 The terms phase difference and path difference are
A. Same
B. Different
C. Equal
D. none of these
8 In case of point source of light, shape of wavefront is
A. Spherical
B. Cylindrical
C. Plane
D. None of above
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 Laws of reflection and refraction can also be explained by
A. Particle nature of light
B. Quantum nature of light
C. Wave nature of light
D. Complex nature of light

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