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Online Tests
Ics Part 2 Physics Chapter 10 Test Online MCQs With Answers
Question # 1
Which one belongs to lepton's group
Choose an answer
Electron
Muons
Neutrons
All of these
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Question # 2
The energy of photon for photoelectric effect is less than
Choose an answer
1 MeV
2 MeV
5 MeV
8 MeV
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Question # 3
The moderator used in a nuclear reactor
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Sodium
Uranium
Graphite
Cadmium
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Question # 4
Cobalt -60 is the source for
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Alpha rays
Gama rays
Beta rays
Neutron
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Question # 5
Alpha particle carries a charge.
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-e
+2e
-2e
No charge
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Question # 6
The reciprocal of decay construct lamda of a radioactive element is.
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Half life
Mean life
Curie
total life
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Question # 7
In Wilson cloud chamber, if tracks are thick, straight and continuous, then particle is
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a-particles
ß-particles
Y-rays
All
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Question # 8
The dead time of G.M tube is.
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10
-1
sec
10
-6
sec
10
-4
sec
10
-8
sec
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Question # 9
The half life of radioactive elements depends upon
Choose an answer
Temperature
Nature of element
Amount of the radioactive substance
Pressure
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Question # 10
The number of neutrons in Li are
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2
3
4
7
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Question # 11
Which of the following basic force is able to provide an attraction between two neutrons:
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Electrostatic and nuclear b
Electrostatic and gravitational
Gravitational and strong nuclear
Only nuclear force
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Question # 12
When a nucleus emits alpha particle its atomic mass decreases by
Choose an answer
1
2
3
4
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Question # 13
One joule of energy absorbed per kilogram of a body is
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Roentgen
Grey
Rem
Curie
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Question # 14
A device that shows the visible path of ionizing particle is called.
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GM counter
Solid state detector
Scalar
Wilson cloud chamber
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Question # 15
Number of Isotopes of Neon gas are
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2
3
4
1
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Question # 16
Those elements whose charge number z is greater then __________ are unstable:
Choose an answer
80
79
82
83
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Question # 17
Hydrogen bomb is an example of.
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Nuclear fission
Nuclear fusion
Chain reaction
Chemical reaction
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Question # 18
James chadwick discovered:
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Proton
Positron
Neutron
Electron
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