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ECAT Pre General Science Physics Chapter 21 Nuclear Physics
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Total Questions30
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Time Allowed30
ECAT Pre General Science Physics Chapter 21 Nuclear Physics
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Question # 1
Radioactivity is
Question # 2
Neutron was discovered by
Question # 3
When a nucleus emits an alpha particle, it atomic mass decreased by
Question # 4
The number of all the protons and neutrons in a nucleus is known as
Question # 5
For an atom having atomic number Z and atomic weight A, the number of electron in an atoms
Question # 6
The rate of decay of a radioactive substance
Question # 7
After alpha decay the atomic number of the atom
Question # 8
The chemical behaviour of an atom is determined by
Question # 9
The penetration power ofβ-particle is
Question # 10
Gamma rays consist of steam of
Question # 11
Structure of the nucleus was explained by
Question # 12
For Protium, the mass defect is:
Question # 13
Referring to the above figure, we can say that of all the elements, the most stable element is
Question # 14
The diameter of an atom is of the order
Question # 15
The energy is found from Einstein's mass energy relation is called
Question # 16
Heavy water is made of one oxygen atom and two atoms of:
Question # 17
A particle having the mass of electron and charge of a proton is called a
Question # 18
The most abundant isotope of neon is
Question # 19
The half life of uranium-238 is
Question # 20
The chemical properties of all the isotopes of an elements are
Question # 21
Mass of neutron is
Question # 22
Which of the following material has longer half life
Question # 23
Pair production take place when energy ofγ-rays photon is
Question # 24
The distance travelled byα-particle in a medium before coming to rest, is called
Question # 25
Binding energy per nucleus is
Question # 26
Neutrons are
Question # 27
Alfa particles are
Question # 28
The half life of radioactive substances depends upon
Question # 29
A pair of quark and antiquark makes a:
Question # 30
In radio-active decay, the original element which disintegrate to another element is called
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Biology Chapter 1 MCQ - PDF
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Download PDF with answers to study online or offline. The PDF cotnains all MCQ questions with answers for Class 10 Biology Chapter 1 - Acids and Liquids. Total questions are 12.