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

Question # 2

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

Question # 3

Wavelength of light, on the average, is given by

Question # 4

Speed of light in vacuum depends upon

Question # 5

The wave nature of light was proposed by

Question # 6

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

Question # 7

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

Question # 8

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

Question # 9

Light waves are

Question # 10

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

Question # 11

Angle between ray of light and the corresponding wavefront is

Question # 12

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

Question # 13

Huygen's principle states that

Question # 14

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

Question # 15

Two sources are said to be coherent if they have

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ECAT Physics Chapter 10 Important MCQ's

Sr.# Question Answer
1 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
2 Speed of light in vacuum depends upon
A. Frequency
B. Wavelength
C. Amplitude
D. None of these
3 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
4 The terms phase difference and path difference are
A. Same
B. Different
C. Equal
D. none of these
5 Angle between ray of light and the corresponding wavefront is
A. 00
B. 600
C. 900
D. 1200
6 Wavelength of red colour as compared to that of violet colour is
A. Smaller
B. Longer
C. Equal
D. None of these
7 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
8 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
9 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
10 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

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