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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
The number of isotopes of hydrogen are
Question # 2
The number if neutrons in the nucleus of 92U235are
Question # 3
A particle having the mass of electron and charge of a proton is called a
Question # 4
Rate of decay is actually described by.
Question # 5
The nucleus left after the emission of some radiation is called:
Question # 6
The nuclei of an element having the same charge number but different mass numbers are called:
Question # 7
Nucleus consists of
Question # 8
In wilson cloud chamber, the air becomes saturated with:
Question # 9
The chemical properties of an element depends upon the number of
Question # 10
When a charged particle passes through matter, it produces ionization, this effect is used in
Question # 11
The nucleus/nuclei of hydrogen is/are:
Question # 12
For an atom having atomic number Z and atomic weight A, the charge on the nucleus is
Question # 13
Heavy water is made of one oxygen atom and two atoms of:
Question # 14
The range ofβ-particle in air is greater than that ofα-particle by
Question # 15
Nucleus of a hydrogen atom may contain:
Question # 16
Charge on proton is
Question # 17
According to Rutherford atomic model, the positive charge in an atom
Question # 18
The rate of decay of a radioactive substance
Question # 19
Alfa , beta and gamma rays are emitted from a radio-active substance
Question # 20
Referring to the above figure, the binding energy per nucleon increases upto mass number equal to:
Question # 21
The number of protons inside a nucleus is called
Question # 22
A mass spectrograph sort out
Question # 23
The most abundant isotope of neon is
Question # 24
The total charge of any nucleus is given as
Question # 25
The rate of decay of radioactive substance
Question # 26
The distance travelled byα-particle in a medium before coming to rest, is called
Question # 27
U-238 present in the natural uranium is about:
Question # 28
Neutrons are
Question # 29
Radioactivity is
Question # 30
A mass difference of 0.0012 u is equivalent to and energy of:
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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.