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Online Tests
Physics Fsc Part 1 Chapter 10 Online Test MCQs With Answers
Question # 1
The diameter of a lens is called
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Focal length
Aperture
Principle axis
Centre
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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
A convex lens can be used as
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Simple microscope
Compound microscope
Telescope
Spectrometer
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Question # 4
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 # 5
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 # 6
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 # 7
The speed of light was measured correctly by
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Galileo
Michelson
Newton
Maxwell
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Question # 8
The magnifying power of a convex lens of focal lendth 10 cm is
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7
9.6
11
3.5
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Question # 9
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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Question # 10
The Detector in Photo phone is made up of.
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Cadmium
Germanium
Selenium
Silicon
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Question # 11
If focal length of objective and eye piece is 0.5 m and 10 cm respectively then magnifying power of telescope will be.
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0.5
5
10
20
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Question # 12
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 # 13
The units of magnifying power of microscope or telescope are.
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Metre
m
-1
dioptre
No unit
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Question # 14
The light signal in Opticla fiber must be regenerated by advice called.
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Regenerator
Generator
Repeater
Diode
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Question # 15
Image formed by a concave lens is
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Real
Virtual
Erect
None of these
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Question # 16
The final image seen through ey piece in telescope is.
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Real, enlarge and inverted
Vertual, enlarge and erect
Virtual, enlarge and inverted
In Real, enlarge and erect
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Question # 17
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 # 18
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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