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Online Tests
1st Year Fsc Physics Online Test MCQs With Answers
Question # 1
Critical angle is that angle of incident ofr which angle of refraction is.
Choose an answer
90
o
45
o
42
o
24
o
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Question # 2
Which one of the followign scientistis made some conributions to geometrical optics
Choose an answer
Plato
Archimedes
Euclid
None of these
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Question # 3
The apparent change in the pitch of sound due to relative motion is called.
Choose an answer
Carnot theorem
Interference
Doppler effect
Beats
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Question # 4
When the amplitude of a wave is increase to doubled is energy.
Choose an answer
Remain the same
Increases 4 times
Increases by two times
Decreases by half
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Question # 5
Which of the following is the derived quantity.
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Time
Length
Area
Mass
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Question # 6
A double convex lens acts as diverging lens when the object is
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At infinity
Inside the focus
A way from focus
A a large distance from lens
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Question # 7
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 # 8
The SI unit of flow rate are
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m-sec
-2
m
3
-sec
-1
m
3
-sec
-2
m-sec
-3
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Question # 9
Efficiency of steam locomotive is.
Choose an answer
8%
10%
9%
7%
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Question # 10
The dimensions of angular velocity are
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[LT-1]
[LT-2]
[T-1]
[L-1T-1]
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Question # 11
How many orbiting satellites from the Global positing system.
Choose an answer
3
12
24
22
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Question # 12
The light signal in Opticla fiber must be regenerated by advice called.
Choose an answer
Regenerator
Generator
Repeater
Diode
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Question # 13
The resultant of two forces 3 N and 4 N acting at right angle to each other is
Choose an answer
7 N
5 N
4 N
1 N
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Question # 14
The distance between two consecutive trough is called.
Choose an answer
Displacement
Amplitude
Wave length
Wave front
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Question # 15
The product of rotational inertial 'I' and angular velocity ' w' is equal to.
Choose an answer
Torque
Linear momentum
Angular momentum
Force
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Question # 16
A heat engine operates between the temperature 1000 K and 400 K, Its efficiency is.
Choose an answer
100%
70%
60%
50%
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Question # 17
The instrument which detects the instant as which the external pressure becomes equal to the systolic pressure is called.
Choose an answer
Manometer
Sphygmomanometer
Barometer
Stethoscope
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Question # 18
73.650 rounded off upto one decimal is
Choose an answer
73.6
74.00
73.7
73.65
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