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Online Tests
Physics Fsc Part 2 Chapter 8 Online Test MCQs With Answers
Question # 1
Albert Einstein got noble prize in:
Choose an answer
1926
1921
1918
1931
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Question # 2
The stopping potential for a certain metal is 10 volts. Thus work function for the cathode is.
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10 J
1.6 X 10
-18
J
1.6 X 10
-19
J
1.6 X 10
30
J
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Question # 3
Photodiode is used for wave nature of.
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Light
Thermal radiation
Radi waves
Sound waves
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Question # 4
The most refined form of matter is:
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Smoke
Light
Ice
Fog
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Question # 5
Pair production occurs only when energy of photon is at least equal in:
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1.02keV
1.02 eV
1.02 MeV
1.02 GeV
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Question # 6
The unit of Plank's constant 'h' is.
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JC
J/C
JS
J/S
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Question # 7
In an nihilation emitted photons moves in opposite directions to conserve.
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Mass
Charge
Energy
Momentum
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Question # 8
In the equation if f
2
> then
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Question # 9
The minimum energy required for occurrence of pair production is:
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1.022eV
1.02keV
1.02Me.V
1.04MeV
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Question # 10
Number of electros emitted in photo electric effect depend upon.
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Intensity of incident light
Frequency of incident light
Energy of incident light
Wavelength of incident of light
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Question # 11
The special theory of relativity based on.
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One postulate
Two postulates
Three postulates
Four postulates
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