ECAT Pre Computer Science Chapter 21 MCQ Test With Answer

MCQ's Test For ECAT Physics Chapter 21 Nuclear Physics

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

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ECAT Physics Chapter 21 Nuclear Physics

00:00
Question # 1

When certain nucleus emits anα particle, its mass number:

Question # 2

An alpha particle has a charge of

Question # 3

When a charged particle passes through matter, it produces ionization, this effect is used in

Question # 4

The unit of decay constant is:

Question # 5

1 amu is equal to

Question # 6

Radiation detector are used to

Question # 7

If 'V' is the relativistic speed and 'C' is the speed of light then according to Einstien the factor V/C must always be

Question # 8

Structure of the nucleus was explained by

Question # 9

For an atom having atomic number Z and atomic weight A, the charge on the nucleus is

Question # 10

Neutron was discovered in

Question # 11

The range of particle depends upon the factor

Question # 12

Different radioactive material have

Question # 13

In 1932 Chadwick discovered

Question # 14

Mass of proton is of order of

Question # 15

Which of these is not a radiation detector

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ECAT Physics Chapter 21 Important MCQ's

Sr.# Question Answer
1 The energy is found from Einstein's mass energy relation is called
A. binding energy of electron
B. binding energy of proton
C. binding energy of neutron
D. binding energy of nucleus
2 For Protium, the mass defect is:
A. Infinite
B. Zero
C. Very large
D. A few grams
3 A mass spectrograph sort out
A. molecules
B. atoms
C. elements
D. isotopes
4 The rate of decay of a radioactive substance
A. decrease exponentially with time
B. decreases linearly with time
C. increases linearly with time
D. increases exponentially with time
5 The energy acquired by a mass of 1g moving with the speed of light is
A. 3 x 108J
B. 9 x 1013J
C. 3 x 1013J
D. 9 x 1016J
6 Heavy water is made of one oxygen atom and two atoms of:
A. Protium
B. Deuterium
C. Tritium
D. Any of these
7 Radiation detector are used to
A. measure intensity of radiation
B. measure energy of radiation
C. difference between different types of radiation
D. all the above
8 Rutherford performed an experiment on nuclear reactions in:
A. 1718 A.D
B. 1818 A.D
C. 1918 A.D
D. 2001 A.D.
9 Marie curie and Pierre curie discovered:
A. Uranium
B. Polonium
C. Radium
D. Both (A) and (C)
10 Radioactivity is
A. self disruptive activity
B. spontaneous activity
C. exhibited by all elements under proper conditions
D. both 'a' and 'b'

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