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 number of isotopes of hydrogen are

Question # 2

Charge on neutron is

Question # 3

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

Question # 4

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

Question # 5

Marie curie and Pierre curie discovered:

Question # 6

How many isotopes of helium are present?

Question # 7

When a nucleus emits an alpha particles, its charge number decreases by

Question # 8

Binding energy per nucleus is

Question # 9

In radio-active decay, the original element which disintegrate to another element is called

Question # 10

Neutron was discovered in

Question # 11

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

Question # 12

The penetration power ofβ-particle is

Question # 13

Neon gas have three isotopes whose atomic numbers are

Question # 14

An alpha particle has a charge of

Question # 15

Neutron was disvovered by:

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ECAT Physics Chapter 21 Important MCQ's

Sr.# Question Answer
1 Structure of the nucleus was explained by
A. J.J Thomson
B. Bohr
C. Millikan
D. Rutherford
2 Charge on neutron is
A. 1.6 x 10-19C
B. zero
C. -1.6 x 10-19C
D. 1.2 x 10-19C
3 When certain nucleus emits anα particle, its mass number:
A. Increases by one
B. Decreases by one
C. Remain same
D. Decreases by four
4 The energy is found from Einstein's mass energy relation is called
A. binding energy of electron
B. binding energy of proton
C. binding energy of neutron
D. binding energy of nucleus
5 Heavy water is made of one oxygen atom and two atoms of:
A. Protium
B. Deuterium
C. Tritium
D. Any of these
6 When thorium nucleus emits aβ-particle, the daughter nucleus is called:
A. Protactinium
B. Actinium
C. Uranium
D. Radium
7 Mass of neutron is
A. 1.67 x 10-31kg
B. 1.67 x 10-27kg
C. 9.1 x 10-31kg
D. 1.67 x 10-19kg
8 Neutron was discovered in
A. 1915
B. 1920
C. 1925
D. 1932
9 The counter, which also provides the power to the G.M. tube is called:
A. Thin mica window
B. thin glass window
C. Airy window
D. Wooden window
10 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

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