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

The most abundant isotope of neon is

Question # 2

Hydrogen atom with only one proton and one neutron in its nucleus, and one electron, is called

Question # 3

The amount of energy equivalent to 1 a.m.u is

Question # 4

The half life of uranium-238 is

Question # 5

The half lie of radium-226 is

Question # 6

The total charge of any nucleus is given as

Question # 7

How many isotopes of helium are present?

Question # 8

Neutrons are

Question # 9

Examples of moderators used in a fission reactor is/are:

Question # 10

The missing mass which is converted to energy in the formation of nucleus, is called

Question # 11

According to Rutherford atomic model, the positive charge in an atom

Question # 12

If a nucleus emits an alpha particle, its mass number decreases by 4 while charge number decreased by

Question # 13

Heavy water is made of one oxygen atom and two atoms of:

Question # 14

Charge on proton is

Question # 15

The number of protons inside a nucleus is called

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ECAT Physics Chapter 21 Important MCQ's

Sr.# Question Answer
1 In his experiment on nuclear reactions, Rutherford bombardedα particles on:
A. Nitrogen
B. Hydrogen
C. Lead
D. Oxygen
2 A particle having the mass of electron and charge of a proton is called a
A. photon
B. position
C. antiproton
D. antineutrino
3 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
4 The nucleous of uranium -235 differs from a nucleous of a uranium -238 in that the later contains
A. 3 more neutrons
B. 3 more electrons
C. 3 more protons
D. 3 more ions
5 The total charge of any nucleus is given as
A. Ze2
B. Z2e
C. Z/e
D. Ze
6 A curie represents a very strong source of
A. α-particle
B. β-particle
C. γ-particle
D. none of these
7 Phenomenon of radioactivity is due to disintegration of
A. nucleus
B. neutron
C. proton
D. molecule
8 Radium was discovered by:
A. Becquerel
B. Marie curie
C. Pierre curie
D. Rutherford
9 Alfa particles are
A. hydrogen nuclei
B. helium nuclei
C. electrons
D. photons
10 Nucleon means:
A. Only electrons
B. Only neutrons
C. Only protons
D. Both (A ) and (C)

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