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

A mass difference of 0.0012 u is equivalent to and energy of:

Question # 2

γ-rays are

Question # 3

Binding energy per nucleus is

Question # 4

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

Question # 5

How many isotopes of helium are present?

Question # 6

1 amu is equal to.

Question # 7

The energy is found from Einstein's mass energy relation is called

Question # 8

There is present in paraffin a large amount of:

Question # 9

Mass of proton is of order of

Question # 10

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

Question # 11

Radiation detector are used to

Question # 12

In 1932 Chadwick discovered

Question # 13

The emission of radiations take place in elements, having charge number greater than

Question # 14

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

Question # 15

The counter, which also provides the power to the G.M. tube is called:

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ECAT Physics Chapter 21 Important MCQ's

Sr.# Question Answer
1 When a nucleus emits an alpha particles, its charge number decreases by
A. 3
B. 2
C. 6
D. 5
2 Curie is a unit of
A. reluctance
B. resistivity
C. binding energy
D. radioactivity
3 In radioactive decay, the new element which is formed due to the disintegration of original element is called
A. element
B. daughter element
C. parent element
D. none of these
4 For an atom having atomic number Z and atomic weight A, the number of electron in an atoms
A. A - Z
B. A + Z
C. Z
D. A
5 The missing mass which is converted to energy in the formation of nucleus, is called
A. packing fraction
B. mass defect
C. binding energy
D. none of these
6 When a nucleus emits an alpha particle, it atomic mass decreased by
A. 2
B. 1
C. 4
D. 3
7 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
8 Radioactivity is
A. self disruptive activity
B. spontaneous activity
C. exhibited by all elements under proper conditions
D. both 'a' and 'b'
9 How many isotopes of helium are present?
A. 1
B. 2
C. 3
D. 4
10 1 amu is equal to
A. 1.66 x 10-24kg
B. 1.66 x 10-19kg
C. 1.66 x 10-34kg
D. 1.66 x 10-27kg

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