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

One joule of energy absorbed per kilogram of a body is

Question # 2

In nuclear radiation , track of alpha particle is.

Question # 3

Rutherford performed on experiment on a nuclear reaction in:

Question # 4

Nuclear fission chain reaction is controlled by using.

Question # 5

Cobalt -60 is the source for

Question # 6

Subatomic particles are divided into groups.

Question # 7

GM counter uses

Question # 8

Alpha particle carries a charge.

Question # 9

The most abundant isotope of neon is:

Question # 10

The energy equivalent of 1 kg of matter is about:

Question # 11

Both xenon and caesium each have:

Question # 12

The number of Isotopes of cesium are.

Question # 13

The dead time of G.M tube is.

Question # 14

Nuclear fission was discovered by:

Question # 15

A radio active substance has a half life of four months. 3 -fourth of the substance will decay in:

Question # 16

Number of Isotopes of Neon gas are

Question # 17

Materials can be identified by measuring their

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FSc Part II Physics Chapter 0 Important MCQ's

Sr.# Question Answer
1 Alpha particle carries a charge.
A. -e
B. +2e
C. -2e
D. No charge
2 In Wilson cloud chamber, if tracks are thick, straight and continuous, then particle is
A. a-particles
B. ß-particles
C. Y-rays
D. All
3 Half life of radon gas is
A. 3.8 minutes
B. 3.8 days
C. 3.8 months
D. 3.8 years
4 By emitting Beta particle and gama particle simultaneously the nucleolus changes in its charges by
A. N
B. N/2
C. N/4
D. 3N/4
5 The force which is responsible for the breaking up of the radioactive element is.
A. Weak nuclear force
B. Strong nuclear force
C. Electromagnetic force
D. Gravitational force
6 Bottom quark carries charge :
A. 2/3 e
B. -2/3 e
C. +1/3 e
D. -1 /3 e
7 Nuclear fission chain reaction is controlled by using.
A. Cadmium rods
B. Iron rods
C. Platinum rods
D. Steel rods
8 Binding energy for deuteron nucleus is given by
A. 2.8 MeV
B. 2.23 MeV
C. 2.28 MeV
D. 2.25 MeV
9 Half life of Uranium -239 is
A. 26.5 minutes
B. 24.5 minutes
C. 25.5 minutes
D. 23.5 minutes
10 The particles which do not experience strong force are called.
A. Baryons
B. Hadrons
C. Mesons
D. Laptons

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