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

James chadwick discovered:

Question # 2

Circulation of blood is studied by radio isotope.

Question # 3

The binding energy per nucleon is maximum for

Question # 4

Various types of cancer are treated by

Question # 5

The types of quacks are.

Question # 6

Two up quarks and one down quarks makes a

Question # 7

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

Question # 8

When a nucleus emits an alpha particle, its atomic mass decreases by

Question # 9

One joule of energy absorbed per kilogram of a body is

Question # 10

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

Question # 11

Electrons are

Question # 12

When gama rays are emitted, the nuclear mass.

Question # 13

The mass of protons is:

Question # 14

The number of neutrons in Li are

Question # 15

The amount of energy equivalent to 1 a.m.u is

Question # 16

The number of protons in any atom are always equal to the number of

Question # 17

Absorbed Dose 'D' is defined as

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FSc Part II Physics Chapter 0 Important MCQ's

Sr.# Question Answer
1 One joule of energy absorbed per kilogram of a body is
A. Roentgen
B. Grey
C. Rem
D. Curie
2 A particles equal or greater in mass than of protons are called.
A. Baryons
B. Leptons
C. Mesons
D. Quarks
3 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?
A. Nucleas A
B. Nucleus B
C. Less than nucleus
D. None of these
4 Absorbed Dose 'D' is defined as
A. m/E
B. E/C
C. C/m
D. E/m
5 1 gray is equal to.
A. 1 JKg-1
B. 1KgJ-1
C. 1JKg
D. 1 JKg-2
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 Unit of decay constantλ is:
A. ms
B. m-1
C. m
D. S-1
8 Which pair belongs to hadrons.
A. Protons and Neutrons
B. Neutrons and electrons
C. Photons and electrons
D. positrons and electrons
9 I amu =
A. 9.31 MeV
B. 931 MeV
C. 9.031 MeV
D. None of above
10 Energy released by conversion of 1 amu is
A. 200 MeV
B. 931 MeV
C. 233 MeV
D. 243 MeV

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