2nd Year Physics Chapter 21 Online MCQ Test for 12th Class Physics Chapter 21 (Nuclear Physics)

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Physics ICS Part 2 Chapter 21 Online MCQ's Test

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Question # 1

The number of neutrons in Li are

Question # 2

The number of Neutron is 238U92is

Question # 3

Various types of cancer are treated by

Question # 4

Which is true for both alpha particle and gama rays.

Question # 5

The bnding energy for nucleus A is 7.7 Me V and that for nucleus B is 7.8 MeV. Which nucleus has the larger mass?

Question # 6

Which particle has larger range in air.

Question # 7

James chadwick discovered:

Question # 8

There is no charge in A and Z of any radioactive element by the emission of.

Question # 9

The SI unit of decay constant is

Question # 10

The mass of proton in amu is:

Question # 11

How many times, the alpha particle is more massive than electrons.

Question # 12

The mass of protons is:

Question # 13

The dead time of G.M tube is.

Question # 14

GM counter uses

Question # 15

Which pair belongs to hadrons.

Question # 16

The half life of radioactive elements depends upon

Question # 17

X -rays are similar in nature to.

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FSc Part II Physics Chapter 0 Important MCQ's

Sr.# Question Answer
1 Cobalt -60 is the source for
A. Alpha rays
B. Gama rays
C. Beta rays
D. Neutron
2 Charge on an electron was determined by
A. Ampere
B. Millikan
C. Maxwell
D. Bohr
3 The number of neutrons in Li are
A. 2
B. 3
C. 4
D. 7
4 Binding energy for deuteron nucleus is given by
A. 2.8 MeV
B. 2.23 MeV
C. 2.28 MeV
D. 2.25 MeV
5 Which of the following is typical source of alpha particle.
A. Strontium -94
B. Radon -222
C. Cobalt -60
D. Zic sulphate
6 The radio active nuclide 86Ra228 decays by a series of emissions of three alpha particles and one beta particle. The nuclide X finally formed is:
A. 64X220
B. 86X222
C. 84X216
D. 88X215
7 The most abundant isotope of neon is:
A. Neon 21
B. Neon 20
C. Neon 22
D. None of above
8 Hydrogen bomb is an example of.
A. Nuclear fission
B. Nuclear fusion
C. Chain reaction
D. Chemical reaction
9 James chadwick discovered:
A. Proton
B. Positron
C. Neutron
D. Electron
10 The first atomic reactor was introduced by
A. Currie
B. Enrico Fermi
C. Newton
D. Bohr

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