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	The number of protons inside a nucleus is called	mass number atomic weight atomic number none of these
2	The total charge of any nucleus is given as	Ze<sup>2</sup> Z<sup>2</sup>e Z/e Ze
3	The nucleous of uranium -235 differs from a nucleous of a uranium -238 in that the later contains	3 more neutrons 3 more electrons 3 more protons 3 more ions
4	For an atom having atomic number 'Z' and atomic weight 'A', the number of neutrons in the nucleous is	A - Z A Z A + Z
5	According to Rutherford atomic model, the positive charge in an atom	is concentrated at its centre is in the form of positive electron at same distance from its centre is spread uniformly through its volume none of these
6	The chemical behaviour of an atom is determined by	binding energy atomic number mass number number of isotopes
7	1 amu is equal to	1.66 x 10<sup>-24</sup>kg 1.66 x 10<sup>-19</sup>kg 1.66 x 10<sup>-34</sup>kg 1.66 x 10<sup>-27</sup>kg
8	Mass of proton is	1.67 x 10<sup>-27</sup>kg 1.67 x 10<sup>-31</sup>kg 1.66 x 10<sup>-34</sup>kg 1.67 x 10<sup>-17</sup>kg
9	Mass of neutron is	1.67 x 10<sup>-31</sup>kg 1.67 x 10<sup>-27</sup>kg 9.1 x 10<sup>-31</sup>kg 1.67 x 10<sup>-</sup>19kg
10	Nucleus consists of	proton and neutron protons and electron electron and neutron protons only
11	A particle having the mass of electron and charge of a proton is called a	photon position antiproton antineutrino
12	Charge on neutron is	1.6 x 10<sup>-19</sup>C zero -1.6 x 10<sup>-19</sup>C 1.2 x 10<sup>-19</sup>C
13	In 1932 Chadwick discovered	proton neutron photon electron
14	Neutron was discovered by	Curie Roentgen Chadwick Rutherford
15	Neutron was discovered in	1915 1920 1925 1932

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