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Online Tests
Physics ECAT Pre Engineering Chapter 21 Nuclear Physics Physics Online Test MCQs With Answers
Question # 1
The amount of energy equivalent to 1 a.m.u is
Choose an answer
9.315 Mev
93.15 Mev
931.5 Mev
2.22 Mev
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Question # 2
When a nucleus emits an alpha particle, it atomic mass decreased by
Choose an answer
2
1
4
3
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Question # 3
Maric Curie and Pieree Curie discovered two new radioactive elements, which are called
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polonium uranium
uranium and radium
polonium and radium
none of these
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Question # 4
Which of the following material has smaller has life
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uranium
polonium
radium
radian
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Question # 5
Which of the following material has longer half life
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radium
polonium
radium
uranium
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Question # 6
1 amu is equal to
Choose an answer
1.66 x 10
-24
kg
1.66 x 10
-19
kg
1.66 x 10
-34
kg
1.66 x 10
-27
kg
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Question # 7
Examples of moderators used in a fission reactor is/are:
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Water
Heavy water
Carbon
Hydrocarbon
All of these
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Question # 8
Different radioactive material have
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same half lives
different half lives
same mean lives
same total lives
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Question # 9
The reciprocal of decay constant λ of a radioactive material is:
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Frequency
Half life
Year
Mean life
None of these
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Question # 10
Referring to the above figure, the binding energy per nucleon increases upto mass number equal to:
Choose an answer
50
100
150
200
250
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Question # 11
The penetration power of
β-particle is
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zero
less than
α-particle
equal to
α-particle
greater than
α-particle
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Question # 12
Neutron was disvovered by:
Choose an answer
Rutherford in 1920
Chadwick in 1922
Bohr in 1913
Compton in 1927
None of these
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Question # 13
Neutrons are
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positive charge
negatively charged
massless
neutral
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Question # 14
Radioactivity is
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self disruptive activity
spontaneous activity
exhibited by all elements under proper conditions
both 'a' and 'b'
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Question # 15
The most abundant isotope of neon is
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neon-20
neon-21
neon-22
neon-23
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Question # 16
The energy is found from Einstein's mass energy relation is called
Choose an answer
binding energy of electron
binding energy of proton
binding energy of neutron
binding energy of nucleus
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