ECAT Pre Engineering Physics Chapter 21 MCQ Test With Answer

MCQ's Test For Physics ECAT Pre Engineering Chapter 21 Nuclear Physics

Try The MCQ's Test For Physics ECAT Pre Engineering Chapter 21 Nuclear Physics

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Physics ECAT Pre Engineering Chapter 21 Nuclear Physics

00:00
Question # 1

Radioactivity

Question # 2

For Protium, the mass defect is:

Question # 3

Rutherford performed an experiment on nuclear reactions in:

Question # 4

The missing mass which is converted to energy in the formation of nucleus, is called

Question # 5

Structure of the nucleus was explained by

Question # 6

Nuclei that have the same charge number but different mass number are called

Question # 7

Binding energy per nucleus is

Question # 8

How much time, theα-particle more massive than an electron

Question # 9

Hydrogen atom with only one proton and one neutron in its nucleus, and one electron, is called

Question # 10

Neon gas have three isotopes whose atomic numbers are

Question # 11

Alfa particles are

Question # 12

1 amu is equal to.

Question # 13

Hydrogen atom with only one proton in its nucleus, and one electron in its orbit is called

Question # 14

Fraction of the decaying atoms per unit time is called

Question # 15

Radioactivity is

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ECAT Physics Chapter 21 Important MCQ's

Sr.# Question Answer
1 Which of the following material has smaller has life
A. uranium
B. polonium
C. radium
D. radian
2 Neon gas have three isotopes whose atomic numbers are
A. 20, 24 , 23
B. 20, 21 , 22
C. 20, 19 , 21
D. none of these
3 The amount of energy equivalent to 1 a.m.u is
A. 9.315 Mev
B. 93.15 Mev
C. 931.5 Mev
D. 2.22 Mev
4 For Protium, the mass defect is:
A. Infinite
B. Zero
C. Very large
D. A few grams
5 Rate of decay is actually described by.
A. Half line
B. Decay constant
C. Mean life
D. Total life
6 Neutrons are
A. positive charge
B. negatively charged
C. massless
D. neutral
7 When certain nucleus emits anα particle, its mass number:
A. Increases by one
B. Decreases by one
C. Remain same
D. Decreases by four
8 Curie is a unit of
A. reluctance
B. resistivity
C. binding energy
D. radioactivity
9 Proton was discovered by Rutherford in
A. 1915
B. 1906
C. 1910
D. 1920
10 Radioactivity was discovered by
A. Rutherford
B. Henri Becqureal
C. Maxwell
D. James Chadwick

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