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

Monochromatic light means wave of

Question # 2

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

Question # 3

The wave nature of light was proposed by

Question # 4

Light waves are

Question # 5

Laws of reflection and refraction can also be explained by

Question # 6

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

Question # 7

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

Question # 8

Light has

Question # 9

Huygen principle is used to determine

Question # 10

The terms phase difference and path difference are

Question # 11

Light waves are

Question # 12

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

Question # 13

Wavelength of light, on the average, is given by

Question # 14

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

Question # 15

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

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ECAT Physics Chapter 10 Important MCQ's

Sr.# Question Answer
1 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
2 Frequency of red colour as compared to that of violet colour is
A. Equal
B. Smaller
C. Greater
D. None of these
3 Light waves are
A. Transverse waves
B. Longitudinal waves
C. Compressional
D. None of them wave
4 The wave nature of light was proposed by
A. Newton
B. Thomas Young
C. Huygen
D. None of these
5 Speed of light in vacuum depends upon
A. Frequency
B. Wavelength
C. Amplitude
D. None of these
6 The terms phase difference and path difference are
A. Same
B. Different
C. Equal
D. none of these
7 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
8 The appearance of colours in the soap (or oil) film results from
A. Dispersion
B. Interference
C. Reflection
D. Refraction
9 Light waves are
A. Mechanical waves
B. Electromagnetic waves
C. Any of above
D. None of above
10 Huygen principle is used to determine
A. Speed of light
B. Location of wavefront
C. About polarized and unpolarized light
D. None of them

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