ECAT Pre Engineering Physics Chapter 21 online mcq test with answers for chapter 21 (Nuclear Physics)

Physics ECAT Pre Engineering Chapter 21 Nuclear Physics Physics Online Test

Sr. #	Questions	Answers Choice
1	Hydrogen atom with only one proton and one neutron in its nucleus, and one electron, is called	deuterium protium tritium none of these
2	Hydrogen atom with only one proton in its nucleus, and one electron in its orbit is called	deuteron deterium protium tritium
3	How many isotopes of helium are present?	1 2 3 4
4	The number of isotopes of hydrogen are	2 1 3 4
5	Nuclei that have the same charge number but different mass number are called	isotones isomers isotopes isobars
6	Electrons are	positive charged negatively charged massless neutral
7	Neutrons are	positive charge negatively charged massless neutral
8	The diameter of an atom is of the order	10<sup>-125</sup>m 10<sup>-11</sup>m 10<sup>-10</sup>m 10<sup>-9</sup>m
9	Structure of the nucleus was explained by	J.J Thomson Bohr Millikan Rutherford
10	Charge on proton is	1.59 x 10<sup>-9</sup>C 1.59 x 10<sup>-7</sup>C -1.59 x 10<sup>-19 </sup>C 1.59 x 10<sup>-19</sup>C
11	Mass of proton is of order of	10<sup>-31</sup>gm 10<sup>-27</sup>kg 10<sup>-24</sup>gm 10<sup>+27</sup>kg
12	The number if neutrons in the nucleus of ₉₂U²³⁵are	Infinite 92 235 143
13	For an atom having atomic number Z and atomic weight A, the number of electron in an atoms	A - Z A + Z Z A
14	For an atom having atomic number Z and atomic weight A, the charge on the nucleus is	A - Z A + Z Z A
15	The number of all the protons and neutrons in a nucleus is known as	atomic number mass number charge number none of these

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