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 terms phase difference and path difference are

Question # 2

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

Question # 3

Speed of light in vacuum depends upon

Question # 4

The wave nature of light was proposed by

Question # 5

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

Question # 6

Light waves are

Question # 7

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

Question # 8

Wavelength of light, on the average, is given by

Question # 9

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

Question # 10

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

Question # 11

Laws of reflection and refraction can also be explained by

Question # 12

Angle between ray of light and the corresponding wavefront is

Question # 13

Monochromatic light means wave of

Question # 14

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

Question # 15

In YDS experiment, fringe spacing means the distance between two consecutive _________ fringes

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ECAT Physics Chapter 10 Important MCQ's

Sr.# Question Answer
1 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
2 In an interference pattern of Young's Double Slit (YDS) experiment
A. Bright fringes are wider than dark fringes
B. Dark fringes are wider than bright fringes
C. Both dark and bright fringes are of equal width
D. Central fringes are wider than the outer fringes
3 The appearance of colours in the soap (or oil) film results from
A. Dispersion
B. Interference
C. Reflection
D. Refraction
4 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
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 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
7 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
8 The wave nature of light was proposed by
A. Newton
B. Thomas Young
C. Huygen
D. None of these
9 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
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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