More Classes
5th Class
6th Class
7th Class
8th Class
9th Class
10th Class
11th Class
12th Class
NAT I
NAT II
CSS
IQ
General Knowledge
MDCAT
ECAT
GAT General
GAT Subject
Other Links
Go to Home
Online Tests
Physics FSC Part 2 Chapter 21 Online MCQ's Test MCQs With Answers
Question # 1
When nitrogen is bombarded by alpha particles nitrogen nucleus changes into
Choose an answer
Oxygen
Carbon
Barium
Helium
Previous
Skip
Next
Question # 2
When a nucleus emits an alpha particle, its atomic mass decreases by
Choose an answer
1
2
3
4
Previous
Skip
Next
Question # 3
James chadwick discovered:
Choose an answer
Proton
Positron
Neutron
Electron
Previous
Skip
Next
Question # 4
What is difference is isotopes
Choose an answer
Number of protons
Number of neutrons
Number of electrons
Charge number
Previous
Skip
Next
Question # 5
The moderator used in a nuclear reactor
Choose an answer
Sodium
Uranium
Graphite
Cadmium
Previous
Skip
Next
Question # 6
The mass of proton in amu is:
Choose an answer
1.07276
1.7276
1.007276
1.0007276
Previous
Skip
Next
Question # 7
Both Xenon and cesium have
Choose an answer
33 isotopes
34 Isotopes
36 Isotopes
35 Isotopes
Previous
Skip
Next
Question # 8
The building blocks of protons and neutrons are called.
Choose an answer
Ions
Electrons
Positrons
quarks
Previous
Skip
Next
Question # 9
A device that shows the visible path of ionizing particle is called.
Choose an answer
GM counter
Solid state detector
Scalar
Wilson cloud chamber
Previous
Skip
Next
Question # 10
The energy equivalent of 1 kg of matter is about:
Choose an answer
10
-15
J
1 J
10
-12
J
10
-17
J
Previous
Skip
Next
Question # 11
Which pair belongs to hadrons.
Choose an answer
Protons and Neutrons
Neutrons and electrons
Photons and electrons
positrons and electrons
Previous
Skip
Next
Question # 12
Energy needed to produce an electron hole in solid state detector is.
Choose an answer
1 to 2 eV
3 to 4 eV
6 to 7 eV
8 to 9 eV
Previous
Skip
Next
Question # 13
The radio active nuclide
86
Ra
228
decays by a series of emissions of three alpha particles and one beta particle. The nuclide X finally formed is:
Choose an answer
64
X
220
86
X
222
84
X
216
88
X
215
Previous
Skip
Next
Question # 14
Curie is unit of.
Choose an answer
Conductivity
Binding energy
Radioactivity
Resistivity
Previous
Skip
Next
Question # 15
Binding energy for deuteron nucleus is given by
Choose an answer
2.8 MeV
2.23 MeV
2.28 MeV
2.25 MeV
Previous
Skip
Next
Question # 16
Low level radiations effects
Choose an answer
Less of hair
Ulceration
Drop of white blood cells
All
Previous
Skip
Next
Question # 17
The binding energy per nucleon is maximum for
Choose an answer
Helium
Iron
Potassium
Radium
Previous
Skip
Next
Question # 18
GM counter uses
Choose an answer
Alcohol only
Bromine
argon
Neon and bromine
Previous
Skip
Next
Back