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

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Question # 1

Electromagnetic waves transport

Question # 2

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

Question # 3

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

Question # 4

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

Question # 5

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

Question # 6

Laws of reflection and refraction can also be explained by

Question # 7

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

Question # 8

Angle between ray of light and the corresponding wavefront is

Question # 9

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

Question # 10

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

Question # 11

Light has

Question # 12

The wave nature of light was proposed by

Question # 13

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

Question # 14

Light waves are

Question # 15

Huygen principle is used to determine

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ECAT Physics Chapter 10 Important MCQ's

Sr.# Question Answer
1 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
2 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
3 Wavelength of light, on the average, is given by
A. 10-14m
B. 10-10m
C. 10-6m
D. 10-4m
4 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
5 Huygen's principle states that
A. Light travels in straight line
B. Light has dual nature
C. Either of these
D. None of these
6 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
7 Light has
A. Wave nature
B. Dual nature
C. Particle nature
D. None of them
8 The appearance of colours in the soap (or oil) film results from
A. Dispersion
B. Interference
C. Reflection
D. Refraction
9 The appearance of colours in the soap (or oil) film results from
A. Dispersion
B. Interference
C. Reflection
D. Refraction
10 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

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