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	Radioactivity was discovered by	Rutherford Henri Becqureal Maxwell James Chadwick
2	Radioactivity	is exhibited more by semiconductors in general in exhibited more by the element when they are coupled with other radioactive elements by a covalent bond is an atomic property of radioactive elements
3	Binding energy per nucleus is	greater for heavy nucleus least for heavy nucleus greatest for light nuclei decreases for medium weight niclei
4	The amount of energy equivalent to 1 a.m.u is	9.315 Mev 93.15 Mev 931.5 Mev 2.22 Mev
5	The energy is found from Einstein's mass energy relation is called	binding energy of electron binding energy of proton binding energy of neutron binding energy of nucleus
6	The missing mass which is converted to energy in the formation of nucleus, is called	packing fraction mass defect binding energy none of these
7	The energy acquired by a mass of 1g moving with the speed of light is	3 x 10<sup>8</sup>J 9 x 10<sup>13</sup>J 3 x 10<sup>13</sup>J 9 x 10<sup>16</sup>J
8	If 'V' is the relativistic speed and 'C' is the speed of light then according to Einstien the factor V/C must always be	Equal to 1 Less than 1 Greater than 1 Infinity
9	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>-24</sup>kg 1.66 x 10<sup>-27</sup>kg
10	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	nuclear fission nuclear fusion man defect radioactivity
11	Neon gas have three isotopes whose atomic numbers are	20, 24 , 23 20, 21 , 22 20, 19 , 21 none of these
12	The most abundant isotope of neon is	neon-20 neon-21 neon-22 neon-23
13	A mass spectrograph sort out	molecules atoms elements isotopes
14	The chemical properties of an element depends upon the number of	electron position photons neutrons
15	The chemical properties of all the isotopes of an elements are	same different slightly different none of these

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