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

Wavelength of light, on the average, is given by

Question # 2

Huygen principle is used to determine

Question # 3

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

Question # 4

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

Question # 5

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

Question # 6

Electromagnetic waves transport

Question # 7

Light waves are

Question # 8

Huygen's principle states that

Question # 9

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

Question # 10

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

Question # 11

Monochromatic light means wave of

Question # 12

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

Question # 13

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

Question # 14

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

Question # 15

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

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ECAT Physics Chapter 10 Important MCQ's

Sr.# Question Answer
1 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
2 Huygen principle is used to determine
A. Speed of light
B. Location of wavefront
C. About polarized and unpolarized light
D. None of them
3 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
4 Light waves are
A. Transverse waves
B. Longitudinal waves
C. Compressional
D. None of them wave
5 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
6 Angle between ray of light and the corresponding wavefront is
A. 00
B. 600
C. 900
D. 1200
7 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
8 Frequency of red colour as compared to that of violet colour is
A. Equal
B. Smaller
C. Greater
D. None of these
9 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
10 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

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