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

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Question # 1

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

Question # 2

Neon gas have three isotopes whose atomic numbers are

Question # 3

The energy is found from Einstein's mass energy relation is called

Question # 4

The chemical properties of all the isotopes of an elements are

Question # 5

The unit of decay constant is

Question # 6

The isotope/s of hydrogen is /are:

Question # 7

During the nuclear changes, the law/s of conservation that hold/s are that of:

Question # 8

The mass of the nucleus is always less than the total man of the protons and neutron that make up the nucleus. The difference of the two masses is called

Question # 9

Charge on neutron is

Question # 10

Heavy water is made of one oxygen atom and two atoms of:

Question # 11

The half lie of radium-226 is

Question # 12

Neutron was suggested to be in the nucleus by:

Question # 13

For Protium, the mass defect is:

Question # 14

Maric Curie and Pieree Curie discovered two new radioactive elements, which are called

Question # 15

There is present in paraffin a large amount of:

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ECAT Physics Chapter 21 Important MCQ's

Sr.# Question Answer
1 The total charge of any nucleus is given as
A. Ze2
B. Z2e
C. Z/e
D. Ze
2 The number of isotopes of hydrogen are
A. 2
B. 1
C. 3
D. 4
3 Hydrogen atom with only one proton in its nucleus, and one electron in its orbit is called
A. deuteron
B. deterium
C. protium
D. tritium
4 If 'V' is the relativistic speed and 'C' is the speed of light then according to Einstien the factor V/C must always be
A. Equal to 1
B. Less than 1
C. Greater than 1
D. Infinity
5 Neutron was suggested to be in the nucleus by:
A. Rutherford in 1920
B. Bohar in 1913
C. Dirac in 1928
D. Anderson in 1932
6 Which of the following material has longer half life
A. radium
B. polonium
C. radium
D. uranium
7 Phenomenon of radioactivity is due to disintegration of
A. nucleus
B. neutron
C. proton
D. molecule
8 In his experiment on nuclear reactions, Rutherford bombardedα particles on:
A. Nitrogen
B. Hydrogen
C. Lead
D. Oxygen
9 Rutherford performed an experiment on nuclear reactions in:
A. 1718 A.D
B. 1818 A.D
C. 1918 A.D
D. 2001 A.D.
10 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

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