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

Nuclear fission was discovered by:

Question # 2

The number of Isotopes of cesium are.

Question # 3

Half life of Uranium -239 is

Question # 4

The charge of an alpha particle is equal to

Question # 5

The number of neutron present in a nucleus in a given by

Question # 6

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

Question # 7

Low level radiations effects

Question # 8

The types of quacks are.

Question # 9

Radioactivity happen due to the disintegration of

Question # 10

The scientist who suggested the presence of neutron was:

Question # 11

Which of the following is typical source of alpha particle.

Question # 12

The mass of protons is:

Question # 13

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

Question # 14

Which is true for both alpha particle and gama rays.

Question # 15

In nuclear radiation , track of alpha particle is.

Question # 16

What is difference is isotopes

Question # 17

The energy of photon for photoelectric effect is less than

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FSc Part II Physics Chapter 0 Important MCQ's

Sr.# Question Answer
1 Charge on an electron was determined by
A. Ampere
B. Millikan
C. Maxwell
D. Bohr
2 The most abundant isotope of neon is:
A. Neon 21
B. Neon 20
C. Neon 22
D. None of above
3 Nuclear fission was discovered by:
A. Otto Hahn
B. Friz strassmann
C. Both a and b
D. Michaelson
4 The amount of energy equivalent to 1 a.m.u is
A. 931.5 MeV
B. 93.15 MeV
C. 9.315 MeV
D. 2.224 MeV
5 When nitrogen is bombarded by alpha particles nitrogen nucleus changes into
A. Oxygen
B. Carbon
C. Barium
D. Helium
6 Those elements whose charge number z is greater then __________ are unstable:
A. 80 
B. 79
C. 82
D. 83
7 1 amu is equal to
A. 1.0606 x 10-27 kg
B. 1.66 x 10-31 kg
C. 1.66 x 10-34 kg
D. 1.66 x 10-19 kg
8 How many neutrons are there in the nuclide Zn66?
A. 22
B. 30
C. 36
D. 66
9 Unit of decay constantλ is:
A. ms
B. m-1
C. m
D. S-1
10 The particles equal in mass but greater than proton are.
A. Mesons
B. Baryons
C. Leptons
D. Hadrons

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