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

Electromagnetic waves transport

Question # 2

Huygen's principle states that

Question # 3

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

Question # 4

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

Question # 5

Angle between ray of light and the corresponding wavefront is

Question # 6

Huygen principle is used to determine

Question # 7

Light waves are

Question # 8

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

Question # 9

The wave nature of light was proposed by

Question # 10

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

Question # 11

Laws of reflection and refraction can also be explained by

Question # 12

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

Question # 13

Light has

Question # 14

The terms phase difference and path difference are

Question # 15

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

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ECAT Physics Chapter 10 Important MCQ's

Sr.# Question Answer
1 The appearance of colours in the soap (or oil) film results from
A. Dispersion
B. Interference
C. Reflection
D. Refraction
2 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
3 Speed of light in vacuum depends upon
A. Frequency
B. Wavelength
C. Amplitude
D. None of these
4 The terms phase difference and path difference are
A. Same
B. Different
C. Equal
D. none of these
5 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
6 Huygen's principle states that
A. Light travels in straight line
B. Light has dual nature
C. Either of these
D. None of these
7 Huygen principle is used to determine
A. Speed of light
B. Location of wavefront
C. About polarized and unpolarized light
D. None of them
8 Light waves are
A. Transverse waves
B. Longitudinal waves
C. Compressional
D. None of them wave
9 Monochromatic light means wave of
A. Same frequency
B. Same colour
C. Same Wavelength
D. All of them
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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