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Online Tests
Physics FSC Part 2 Chapter 21 Online MCQ's Test MCQs With Answers
Question # 1
Controlling rods inserted into the reactor are of metal:
Choose an answer
Aluminium
Cadmium
Magnesium
Copper
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Question # 2
Which one belongs to lepton's group
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Electron
Muons
Neutrons
All of these
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Question # 3
Charge on an electron was determined by
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Ampere
Millikan
Maxwell
Bohr
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Question # 4
The mass of proton in amu is:
Choose an answer
1.07276
1.7276
1.007276
1.0007276
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Question # 5
The scientist who suggested the presence of neutron was:
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Bohr
Rutherford
Chadwick
J.J Thomson
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Question # 6
The energy of photon for photoelectric effect is less than
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1 MeV
2 MeV
5 MeV
8 MeV
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Question # 7
Which pair belongs to hadrons.
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Protons and Neutrons
Neutrons and electrons
Photons and electrons
positrons and electrons
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Question # 8
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 # 9
When a nucleus emits an alpha particle, its atomic mass decreases by
Choose an answer
1
2
3
4
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Question # 10
The most useful tracer is.
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Strontium -90
Iodine -31
Cobalt -60
Carbon -14
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Question # 11
Electrons are
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Hadrons
Laptons
Quarks
Baryons
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Question # 12
The first atomic reactor was introduced by
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Currie
Enrico Fermi
Newton
Bohr
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Question # 13
The energy equivalent of 1 kg of matter is about:
Choose an answer
10
-15
J
1 J
10
-12
J
10
-17
J
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Question # 14
A pair of quark and anti quark makes a.
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Meason
harden
Lapton
Baryon
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Question # 15
The potential difference between the top and bottom of a cloud chamber is of the order of
Choose an answer
290 v
400 v
1 kv
None of above
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Question # 16
When nitrogen is bombarded by alpha particles nitrogen nucleus changes into
Choose an answer
Oxygen
Carbon
Barium
Helium
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Question # 17
Two down and one up quarks make
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Proton
Neutron
photon
Positron
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Question # 18
Which of the following is similar to electron.
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Beta particle
Alpha particle
Neutron
Proton
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