ECAT Pre Engineering Physics Chapter 21 MCQ Test With Answer

Top Scorers Of Physics ECAT Pre Engineering Chapter 21 Nuclear Physics MCQ`s Test

Sr.#	Question	Answer
1	Phenomenon of radioactivity is due to disintegration of	A. nucleus B. neutron C. proton D. molecule
2	For an atom having atomic number Z and atomic weight A, the number of electron in an atoms	A. A - Z B. A + Z C. Z D. A
3	The energy is found from Einstein's mass energy relation is called	A. binding energy of electron B. binding energy of proton C. binding energy of neutron D. binding energy of nucleus
4	A mass difference of 0.0012 u is equivalent to and energy of:	A. 0.5 Me V B. 1.13 MeV C. 5.13 MeV D. 1.13 keV
5	Proton was discovered by Rutherford in	A. 1915 B. 1906 C. 1910 D. 1920
6	Referring to the above figure, we can say that of all the elements, the most stable element is	A. Phosphours B. Iron C. uranium D. Lithium
7	Curie is a unit of	A. reluctance B. resistivity C. binding energy D. radioactivity
8	Nucleus of a hydrogen atom may contain:	A. One neutron only B. Two protons and one neutron C. Two protons and two neutrons D. Aany of above
9	According to Rutherford atomic model, the positive charge in an atom	A. is concentrated at its centre B. is in the form of positive electron at same distance from its centre C. is spread uniformly through its volume D. none of these
10	Mass of proton is	A. 1.67 x 10^-27kg B. 1.67 x 10^-31kg C. 1.66 x 10^-34kg D. 1.67 x 10^-17kg