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

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

Question # 2

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

Question # 3

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

Question # 4

Huygen's principle states that

Question # 5

Angle between ray of light and the corresponding wavefront is

Question # 6

Light waves are

Question # 7

Two sources are said to be coherent if they have

Question # 8

Laws of reflection and refraction can also be explained by

Question # 9

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

Question # 10

Electromagnetic waves transport

Question # 11

Huygen principle is used to determine

Question # 12

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

Question # 13

Light waves are

Question # 14

Light has

Question # 15

Speed of light in vacuum depends upon

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ECAT Physics Chapter 10 Important MCQ's

Sr.# Question Answer
1 Frequency of red colour as compared to that of violet colour is
A. Equal
B. Smaller
C. Greater
D. None of these
2 The property of light which does not change with the nature of the medium is
A. Frequency
B. Amplitude
C. Wavelength
D. None of these
3 To observe interference of light, the condition, which must be met with is that the sources must be
A. Monochromatic
B. Phase coherent
C. Both of above
D. None of above
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 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
6 Speed of light in vacuum depends upon
A. Frequency
B. Wavelength
C. Amplitude
D. None of these
7 The wave nature of light was proposed by
A. Newton
B. Thomas Young
C. Huygen
D. None of these
8 The appearance of colours in the soap (or oil) film results from
A. Dispersion
B. Interference
C. Reflection
D. Refraction
9 In case of constructive interference of two waves, the amplitude of the resultant wave is __________ either of the waves
A. Greater than
B. Equal to
C. Smaller than
D. None of these
10 In YDS experiment, fringe spacing means the distance between two consecutive _________ fringes
A. Bright
B. Dark
C. Any of A or B
D. None of these

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