Second Year Physics Chapter 21 Online MCQ Test for 2nd Year Physics Chapter 21 Nuclear Physics Preparation

FSC Part 2 Physics
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Physics FSC Part 2 Chapter 21 Online MCQ's Test

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Question # 1

The unit of radioactivity is:

Question # 2

A positron is a particle having.

Question # 3

Before and after nuclear reaction the number of protons and neutrons:

Question # 4

The background radiation to which we are exposed, on the average is.

Question # 5

The charge on Beta particle is

Question # 6

The half life of radioactive elements depends upon

Question # 7

The mass of beta particle is equal to mass of.

Question # 8

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

Question # 9

Which pair belongs to hadrons.

Question # 10

The reciprocal of decay construct lamda of a radioactive element is.

Question # 11

Which one belongs to lepton's group

Question # 12

1 amu is equal to

Question # 13

Energy released by conversion of 1 amu is

Question # 14

The moderator used in a nuclear reactor

Question # 15

The charge of an alpha particle is equal to

Question # 16

The building blocks of protons and neutrons are called.

Question # 17

Both Xenon and cesium have

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FSc Part II Physics Chapter 0 Important MCQ's

Sr.# Question Answer
1 The number of neutron present in a nucleus in a given by
A. N = A+Z
B. N = A- z
C. N = Z - A
D. N = A X Z
2 The early Greeks believed that matter waves was
A. Discrete
B. Continuous
C. Both continuous and discrete
D. All of above
3 Materials can be identified by measuring their
A. Mass
B. Half life
C. Both a and b
D. None of a,b,c
4 The energy of photon for photoelectric effect is less than
A. 1 MeV
B. 2 MeV
C. 5 MeV
D. 8 MeV
5 Gamma rays from cobalt -60 are used for treatment of.
A. Circulation of blood
B. Cancer
C. Heart Attack
D. Thyroid glands
6 The SI unit of decay constant is
A. m
B. m-1
C. S-1
D. Nm-1
7 Which of the following basic force is able to provide an attraction between two neutrons:
A. Electrostatic and nuclear b
B. Electrostatic and gravitational
C. Gravitational and strong nuclear
D. Only nuclear force
8 The mass spectrum of naturally occurring neon, showing
A. 1 isotope
B. 2 isotope
C. 3 isotope
D. 4 isotope
9 Low level radiations effects
A. Less of hair
B. Ulceration
C. Drop of white blood cells
D. All
10 The radioactive decay obeys the law

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