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

00:00
Question # 1

Light waves are

Question # 2

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

Question # 3

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

Question # 4

Wavelength of light, on the average, is given by

Question # 5

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

Question # 6

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

Question # 7

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

Question # 8

Angle between ray of light and the corresponding wavefront is

Question # 9

Speed of light in vacuum depends upon

Question # 10

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

Question # 11

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

Question # 12

A line which represents the direction of travel of a wave is known as

Question # 13

Huygen principle is used to determine

Question # 14

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

Question # 15

Electromagnetic waves transport

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ECAT Physics Chapter 10 Important MCQ's

Sr.# Question Answer
1 The wave nature of light was proposed by
A. Newton
B. Thomas Young
C. Huygen
D. None of these
2 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
3 Light waves are
A. Transverse waves
B. Longitudinal waves
C. Compressional
D. None of them wave
4 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
5 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
6 The appearance of colours in the soap (or oil) film results from
A. Dispersion
B. Interference
C. Reflection
D. Refraction
7 Speed of light in vacuum depends upon
A. Frequency
B. Wavelength
C. Amplitude
D. None of these
8 Wavelength of light, on the average, is given by
A. 10-14m
B. 10-10m
C. 10-6m
D. 10-4m
9 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
10 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

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