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Online Tests
Physics Fsc Part 1 Chapter 10 Online Test MCQs With Answers
Question # 1
The light signal in Opticla fiber must be regenerated by advice called.
Choose an answer
Regenerator
Generator
Repeater
Diode
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Question # 2
The final image formed by a simple microscope.
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Virtual and inverted
Real and erected
Virtual and erected
Real and inverted
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Question # 3
The Detector in Photo phone is made up of.
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Cadmium
Germanium
Selenium
Silicon
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Question # 4
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 # 5
Reapters are placed in new system at distance of.
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30 km
50 km
80 km
100 km
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Question # 6
The location of near point changes with
Choose an answer
Age
Size of the eye
Sharpness of the eye
None of these
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Question # 7
The least distance of distinct vision for the normal eye is.
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15 cm
25 cm
125 cm
25 m
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Question # 8
The types of optical fibres are
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Three
Four
Five
Six
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Question # 9
Critical angle is that angle of incident ofr which angle of refraction is.
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90
o
45
o
42
o
24
o
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Question # 10
In an object is placed in between focus point and Opticla center of a convex lens, the image formed by lens is.
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Real inverted
Virtual diminshed
Virtual inverted
Virtual erected
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Question # 11
The focal length of a concave lens is always
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+ve
-ve
Zero
None of these
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Question # 12
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 # 13
More details of an object can be seen with a microscope by using
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Green light
Red light
Yellow light
Blue light
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Question # 14
If an object lies at focus point F in front of a converd lens, its image is formed at.
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2F
F
3F
Infinity
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Question # 15
A convex lens can be used as
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Simple microscope
Compound microscope
Telescope
Spectrometer
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Question # 16
The optical fiber is covered for protection by a
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Glass Jacket
Plastic Jacket
Copper Jacket
Aluminum Jacket
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Question # 17
Total confined light is obtained by
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Total internal reflection
Refraction of light
Diffraction
Polarization
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Question # 18
If the object is at 5 cm from the lens of simple microscope than its magnifying power will be.
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5
10
15
25
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