ECAT Pre Computer Science Chapter 21 MCQ Test With Answer

MCQ's Test For ECAT Physics Chapter 21 Nuclear Physics

Try The MCQ's Test For ECAT Physics Chapter 21 Nuclear Physics

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ECAT Physics Chapter 21 Nuclear Physics

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Question # 1

Structure of the nucleus was explained by

Question # 2

For an atom having atomic number 'Z' and atomic weight 'A', the number of neutrons in the nucleous is

Question # 3

A particle having the mass of electron and charge of a proton is called a

Question # 4

U-238 present in the natural uranium is about:

Question # 5

Neutron was disvovered by:

Question # 6

Nucleon means:

Question # 7

Electrons are

Question # 8

The isotope/s of hydrogen is /are:

Question # 9

Mass of neutron is

Question # 10

Radium was discovered by:

Question # 11

Gamma rays consist of steam of

Question # 12

Fraction of the decaying atoms per unit time is called

Question # 13

When a charged particle passes through matter, it produces ionization, this effect is used in

Question # 14

For an atom having atomic number Z and atomic weight A, the charge on the nucleus is

Question # 15

Binding energy per nucleus is

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ECAT Physics Chapter 21 Important MCQ's

Sr.# Question Answer
1 A mass spectrograph sort out
A. molecules
B. atoms
C. elements
D. isotopes
2 The penetration power ofβ-particle is
A. zero
B. less thanα-particle
C. equal toα-particle
D. greater thanα-particle
3 Electrons are
A. positive charged
B. negatively charged
C. massless
D. neutral
4 The total charge of any nucleus is given as
A. Ze2
B. Z2e
C. Z/e
D. Ze
5 The reciprocal of decay constant λ of a radioactive material is:
A. Frequency
B. Half life
C. Year
D. Mean life
6 The most abundant isotope of neon is
A. neon-20
B. neon-21
C. neon-22
D. neon-23
7 The number of isotopes of hydrogen are
A. 2
B. 1
C. 3
D. 4
8 The chemical properties of an element depends upon the number of
A. electron
B. position
C. photons
D. neutrons
9 The amount of energy equivalent to 1 a.m.u is
A. 9.315 Mev
B. 93.15 Mev
C. 931.5 Mev
D. 2.22 Mev
10 How many isotopes of helium are present?
A. 1
B. 2
C. 3
D. 4

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