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 ECAT Pre Engineering Chapter 21 Nuclear Physics Physics Online Test MCQs With Answers
Question # 1
Marie curie and Pierre curie discovered:
Choose an answer
Uranium
Polonium
Radium
Both (A) and (C)
Plutonium
Previous
Skip
Next
Question # 2
How many isotopes of helium are present?
Choose an answer
1
2
3
4
Previous
Skip
Next
Question # 3
The number of isotopes of hydrogen are
Choose an answer
2
1
3
4
Previous
Skip
Next
Question # 4
The half life of radioactive substances depends upon
Choose an answer
amount of substance
energy of substance
state of substance
temperature of substance
Previous
Skip
Next
Question # 5
The distance travelled by
α-particle in a medium before coming to rest, is called
Choose an answer
range of
γ-particle
range of neutrons
range of particle
none of these
Previous
Skip
Next
Question # 6
The number of all the protons and neutrons in a nucleus is known as
Choose an answer
atomic number
mass number
charge number
none of these
Previous
Skip
Next
Question # 7
Radiation detector are used to
Choose an answer
measure intensity of radiation
measure energy of radiation
difference between different types of radiation
all the above
Previous
Skip
Next
Question # 8
The chemical properties of an element depends upon the number of
Choose an answer
electron
position
photons
neutrons
Previous
Skip
Next
Question # 9
The time required for a radioactive material to decrease in active by one half is called
Choose an answer
half time
half life
disintegration time
mean life
Previous
Skip
Next
Question # 10
Rate of decay is actually described by.
Choose an answer
Half line
Decay constant
Mean life
Total life
None of these
Previous
Skip
Next
Question # 11
Different radioactive material have
Choose an answer
same half lives
different half lives
same mean lives
same total lives
Previous
Skip
Next
Question # 12
Curie is a unit of
Choose an answer
reluctance
resistivity
binding energy
radioactivity
Previous
Skip
Next
Question # 13
Which of the following material has longer half life
Choose an answer
radium
polonium
radium
uranium
Previous
Skip
Next
Question # 14
Referring to the above figure, the binding energy per nucleon increases upto mass number equal to:
Choose an answer
50
100
150
200
250
Previous
Skip
Next
Question # 15
Neutron was discovered in
Choose an answer
1915
1920
1925
1932
Previous
Skip
Next
Question # 16
1 amu is equal to.
Choose an answer
1.66 x 10
-24
kg
1.66 x 10
-19
kg
1.66 x 10
-24
kg
1.66 x 10
-27
kg
Previous
Skip
Next
Back