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Online Tests
Physics Fsc Part 1 Chapter 10 Online Test MCQs With Answers
Question # 1
Multimode graded index fibre has a core whose diameter range lie from.
Choose an answer
5 to 50 micro meter
50 to 100 micro meter
40 to 1000 micro meter
50 to 10,000 micrometer
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Question # 2
The ability of reveal the minor details of an object under examination is called.
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Resolving power
Magnification
Scattering
Reflection
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Question # 3
The focal length of convex lens
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Negative
Positive
small
Large
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Question # 4
The types of optical fibres are
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Three
Four
Five
Six
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Question # 5
The magnifying power is also called
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Resolving power
Angular magnification
Strength of eye
None of these
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Question # 6
__ will travel faster than other through an optical fibre.
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Ultraviolet light
Visible light
Infrared light
White light
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Question # 7
The first person who attempted to measure the speed of light was.
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Michelson
Hygen's
Galileo
Ability
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Question # 8
Using a graded Index fibre, the time difference is reduced to about.
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1 ns per km
33 ns per 100 km
33 ns per km
1 ns per 100 km
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Question # 9
The minimum distance from eye at which an object appears to be distinct is
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Near point
Focal length
Image distance from lens
Object distance from lens
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Question # 10
Critical angle is that incident angle in denser medium for which angle of refraction is.
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0
o
45
o
90
o
120
o
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Question # 11
the final image obtained by astronomical telescope is.
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Erect
Virtual
Magnified
All of these
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Question # 12
Total confined light is obtained by
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Total internal reflection
Refraction of light
Diffraction
Polarization
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Question # 13
The magnification of a convex lens of focal length 5 cm is equal to.
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5
6
10
23
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Question # 14
The device used to study the spectra from different sources of light is
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Telescope
Optical fibre
Spectrometer
Microscope
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Question # 15
Which is not the essential component of a spectrometer.
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Collimator
Telescope
Turntable
Microscope
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Question # 16
In Michelson's experiment the relation used to find the speed of light is
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16 fc
1/16 fd
16 fd
16/fd
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Question # 17
The Detector in Photo phone is made up of.
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Cadmium
Germanium
Selenium
Silicon
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Question # 18
The ratio of size of image and size of object is
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Focal length
Magnification
Resolving power
Principle focus
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