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 first atomic reactor was introduced by

Question # 2

In Wilson cloud chamber, ß-particles leave

Question # 3

Hydrogen bomb is an example of.

Question # 4

When gama rays are emitted, the nuclear mass.

Question # 5

X -rays are similar in nature to.

Question # 6

The early Greeks believed that matter waves was

Question # 7

1 amu is equal to

Question # 8

The mass of beta particle is equal to mass of.

Question # 9

When nitrogen is bombarded by alpha particles nitrogen nucleus changes into

Question # 10

The building blocks of protons and neutrons are called.

Question # 11

Mass equivalent of 931 MeV energy is:

Question # 12

The potential difference between the top and bottom of a cloud chamber is of the order of

Question # 13

Which of the following is similar to electron.

Question # 14

Mass of meason is

Question # 15

The dead time of G.M tube is.

Question # 16

The Unit of decay constant.

Question # 17

Which pair belongs to hadrons.

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FSc Part II Physics Chapter 0 Important MCQ's

Sr.# Question Answer
1 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
2 The mass of proton in amu is:
A. 1.07276
B. 1.7276
C. 1.007276
D. 1.0007276
3 Cosmic rays consist of
A. Protons
B. High energy photons
C. Positron
D. All of above
4 The energy of photon for photoelectric effect is less than
A. 1 MeV
B. 2 MeV
C. 5 MeV
D. 8 MeV
5 The most abundant isotope of neon is:
A. Neon 21
B. Neon 20
C. Neon 22
D. None of above
6 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
7 The binding energy per nucleon is maximum for
A. Helium
B. Iron
C. Potassium
D. Radium
8 Which particle has larger range in air.
A. Alpha rays
B. Gama rays
C. Beta rays
D. Neutron
9 Mass equivalent of 931 MeV energy is:
A. 6.02 x 10-23 kg
B. 1.766 x 10-27kg
C. 2.67 x 10-29kg
D. 6.02 x 10-87kg
10 Circulation of blood is studied by radio isotope.
A. Cobalt -60
B. Phosphorus -32
C. Sodium -24
D. Iodine -131

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