Fsc physics test online-Fsc Part 2 test Physics-chapter 21 Nuclear Physics | ilmkidunya

Physics FSC Part 2 Chapter 21 Online MCQ's Test

Sr. #	Questions	Answers Choice
1	Gamma radiations are emitted due to:	De-excitation of atom De-excitation of nucleus Excitation of atom Excitation of nucleus
2	A radio active substance has a half life of four months. 3 -fourth of the substance will decay in:	6 months 8 months 12 months 16 months
3	The radio active nuclide ₈₆Ra²²⁸ decays by a series of emissions of three alpha particles and one beta particle. The nuclide X finally formed is:	<sub>64</sub>X<sup>220</sup> <sub>86</sub>X<sup>222</sup> <sub>84</sub>X<sup>216</sup> <sub>88</sub>X<sup>215</sup>
4	The energy equivalent of 1 kg of matter is about:	10<sup>-15</sup> J 1 J 10<sup>-12</sup>J 10<sup>-17</sup>J
5	Mass equivalent of 931 MeV energy is:	6.02 x 10<sup>-23</sup> kg 1.766 x 10<sup>-27</sup>kg 2.67 x 10<sup>-29</sup>kg 6.02 x 10<sup>-87</sup>kg
6	How many neutrons are there in the nuclide Zn⁶⁶?	22 30 36 66
7	The bnding energy for nucleus A is 7.7 Me V and that for nucleus B is 7.8 MeV. Which nucleus has the larger mass?	Nucleas A Nucleus B Less than nucleus None of these
8	Controlling rods inserted into the reactor are of metal:	Aluminium Cadmium Magnesium  Copper
9	Nuclear fission was discovered by:	Otto Hahn Friz strassmann Both a and b Michaelson
10	Binding energy per nucleus for uranium is above:	6.7 Mev 7.7 Mev 6.9 MeV 7.9 MeV
11	James chadwick discovered:	Proton Positron Neutron Electron
12	I amu =	9.31 MeV 931 MeV 9.031 MeV None of above
13	Before and after nuclear reaction the number of protons and neutrons:	Must be different  Must be decreased Must be increased Remains same
14	Rutherford performed on experiment on a nuclear reaction in:	1921 1981 1927 1932
15	The unit of radioactivity is:	Bequerel Henry Pascal Joule
16	Those elements whose charge number z is greater then __________ are unstable:	80  79 82 83
17	The binding energy for_________ is maximum.	Copper Glass Iron Aluminum

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