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

Radiation detector are used to

Question # 2

When certain nucleus emits aβ-particles, is mass number:

Question # 3

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

Question # 4

An alpha particle has a charge of

Question # 5

A curie represents a very strong source of

Question # 6

When a nucleus emits an alpha particle, it atomic mass decreased by

Question # 7

The nucleous of uranium -235 differs from a nucleous of a uranium -238 in that the later contains

Question # 8

Neutron was disvovered by:

Question # 9

Pair production take place when energy ofγ-rays photon is

Question # 10

The chemical properties of all the isotopes of an elements are

Question # 11

The penetration power ofβ-particle is

Question # 12

Nuclei that have the same charge number but different mass number are called

Question # 13

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

Question # 14

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

Question # 15

The distance travelled byα-particle in a medium before coming to rest, is called

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ECAT Physics Chapter 21 Important MCQ's

Sr.# Question Answer
1 A mass difference of 0.0012 u is equivalent to and energy of:
A. 0.5 Me V
B. 1.13 MeV
C. 5.13 MeV
D. 1.13 keV
2 The most abundant isotope of neon is
A. neon-20
B. neon-21
C. neon-22
D. neon-23
3 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
4 Radium was discovered by:
A. Becquerel
B. Marie curie
C. Pierre curie
D. Rutherford
5 Referring to the above figure, we can say that of all the elements, the most stable element is
A. Phosphours
B. Iron
C. uranium
D. Lithium
6 Binding energy per nucleus is
A. greater for heavy nucleus
B. least for heavy nucleus
C. greatest for light nuclei
D. decreases for medium weight niclei
7 The penetration power ofβ-particle is
A. zero
B. less thanα-particle
C. equal toα-particle
D. greater thanα-particle
8 Alfa particles are
A. hydrogen nuclei
B. helium nuclei
C. electrons
D. photons
9 The isotope/s of hydrogen is /are:
A. Protium
B. Deuterium
C. Tritium
D. Both (A) and (B)
10 Which of these is not a radiation detector
A. Wilson cloud chamber
B. cyclotron acceleration
C. Geiger Miller counter
D. solid state detector

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