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

ICS Part 2 Physics
Chapter 21 Test

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Physics ICS Part 2 Chapter 21 Online MCQ's Test

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Question # 1

The mass spectrum of naturally occurring neon, showing

Question # 2

Radioactivity happen due to the disintegration of

Question # 3

Unit of decay constantλ is:

Question # 4

The particles equal in mass but greater than proton are.

Question # 5

In Wilson cloud chamber, if tracks are thick, straight and continuous, then particle is

Question # 6

The mass of beta particle is equal to mass of.

Question # 7

The number of Neutron is 238U92is

Question # 8

Nuclear fission was discovered by:

Question # 9

If the following particle have the same energy, which particle has the shortest wave length.

Question # 10

amu =

Question # 11

Half life of Uranium -239 is

Question # 12

The particles which do not experience strong force are called.

Question # 13

A device that shows the visible path of ionizing particle is called.

Question # 14

The energy of photon for photoelectric effect is less than

Question # 15

Which of the following is similar to electron.

Question # 16

Mass of meason is

Question # 17

Which one belongs to lepton's group

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ICS Part 2 Physics Chapter 21 Online Test MCQ's

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FSc Part II Physics Chapter 0 Important MCQ's

Sr.# Question Answer
1 The SI unit of decay constant is
A. m
B. m-1
C. S-1
D. Nm-1
2 Electrons are
A. Hadrons
B. Laptons
C. Quarks
D. Baryons
3 amu =
A. 1.06 x 10-27 kg
B. 1.6606 x 10-27 kg 
C. 1.520 x 10-21 kg
D. 1.6606 x 10-31 kg
4 The charge of an alpha particle is equal to
A. -e
B. +e
C. -2e
D. 2e
5 Gamma radiations are emitted due to:
A. De-excitation of atom
B. De-excitation of nucleus
C. Excitation of atom
D. Excitation of nucleus
6 The moderator used in a nuclear reactor
A. Sodium
B. Uranium
C. Graphite
D. Cadmium
7 Which is true for both alpha particle and gama rays.
A. They cause ionization in air
B. They can be deflected by electric field
C. They can be deflected by magnetic field
D. The y can penetrate a few millimeters of aluminium
8 The building blocks of protons and neutrons are called.
A. Ions
B. Electrons
C. Positrons
D. quarks
9 Curie is unit of.
A. Conductivity
B. Binding energy
C.
Radioactivity
D. Resistivity
10 In Wilson cloud chamber, ß-particles leave
A. Thin and continuous tracks
B. Thick and continuous tracks
C. No tracks
D. Thin and discontinuous tracks

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  • Faiz imran

    Faiz imran

    30 Jun 2019

    Mcqs

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