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Online Tests
Physics FSC Part 2 Chapter 21 Online MCQ's Test MCQs With Answers
Question # 1
The binding energy for_________ is maximum.
Choose an answer
Copper
Glass
Iron
Aluminum
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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
One joule of energy absorbed per kilogram of a body is
Choose an answer
Roentgen
Grey
Rem
Curie
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Question # 4
The most abundant isotope of neon is:
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Neon 21
Neon 20
Neon 22
None of above
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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
Binding energy per nucleus for uranium is above:
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6.7 Mev
7.7 Mev
6.9 MeV
7.9 MeV
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Question # 7
Mass of meason is
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Greater then proton
Less than proton
Equal to proton
Equal to neutron
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Question # 8
Nuclear fission was discovered by:
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Otto Hahn
Friz strassmann
Both a and b
Michaelson
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Question # 9
Which of the following basic force is able to provide an attraction between two neutrons:
Choose an answer
Electrostatic and nuclear b
Electrostatic and gravitational
Gravitational and strong nuclear
Only nuclear force
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Question # 10
The building blocks of protons and neutrons are called.
Choose an answer
Ions
Electrons
Positrons
quarks
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Question # 11
The Unit of decay constant.
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Second
(second)-1
m-1
mk
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Question # 12
Which one of the following is not affected by electric or magnetic field.
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Beta rays
Gama ryas
Alpha rays
Electron
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Question # 13
When a nucleus emits alpha particle its atomic mass decreases by
Choose an answer
1
2
3
4
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Question # 14
The number of neutron present in a nucleus in a given by
Choose an answer
N = A+Z
N = A- z
N = Z - A
N = A X Z
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Question # 15
The SI unit of decay constant is
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m
m
-1
S
-1
Nm
-1
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Question # 16
Subatomic particles are divided into groups.
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Photon
Laptons
Hadrons
All of these
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Question # 17
The radioactive decay obeys the law
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