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Online Tests
Ics Part 2 Physics Chapter 8 Test Online MCQs With Answers
Question # 1
Wave nature of light appears in
Choose an answer
Pair production
Compton effect
Photo electric
Interference
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Question # 2
Disintegration of photon on striking a nucleus into an electron and positron is known as.
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Annihilation of matter
Compton effect
Pair production
Photo electric effect
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Question # 3
The maximum kinetic energy of emitted photo electrons depends upon.
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The intensity of incident light
Frequency of the incident light
Metal surface
Both frequency of incident light and metal surface.
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Question # 4
Which one of the following physical quantities change with relativistic speed?
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Length
Time
Mass
All of above
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Question # 5
The photon with energy greater than 1.02 MeV can interact with matter as.
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Photoelectric effect
Compton effect
Pair production
annihilation of matter
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Question # 6
Who explained the photo electric effect.
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Max Plank
Einstein
Henry
Rutherford
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Question # 7
When platinum is heated is become dull red at:
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900°C
500°C
800°C
1100°C
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Question # 8
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 # 9
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 # 10
The unit for Plank's constant is:
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Js
-1
Jm
Js
Jm
2
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Question # 11
Anti particle of electron is
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Proton
Photon
Neutron
Positron
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Question # 12
Einstein was awarded Nobel prize in physics in
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1905
1911
1918
1921
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Question # 13
Wave nature of particle was given by:
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Clemensen
Louis de Broglie
Laster H. Germer
Clinton S. Davisson
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Question # 14
All motions are
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Absolute
Uniform
Relative
Variable
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Question # 15
Choose an answer
Wien's constant
Planck's constant
Davison constant
Lumber's constant
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Question # 16
Compton shift is maximum for scattering angle of photon
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0
o
90
o
180
o
45
o
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Question # 17
Max planck received noble prize in:
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1927
1932
1918
1914
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Question # 18
A perfect absorber must also be perfect
Choose an answer
Cavity
Sources of radiation
Radiator
None of these
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