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	After alpha decay the atomic number of the atom	A. increase by four B. decreases by two C. increases by two D. decrease by four
2	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
3	When certain nucleus emits anα particle, its mass number:	A. Increases by one B. Decreases by one C. Remain same D. Decreases by four
4	Which of the following material has longer half life	A. radium B. polonium C. radium D. uranium
5	Charge on neutron is	A. 1.6 x 10^-19C B. zero C. -1.6 x 10^-19C D. 1.2 x 10^-19C
6	Radioactivity is	A. self disruptive activity B. spontaneous activity C. exhibited by all elements under proper conditions D. both 'a' and 'b'
7	1 amu is equal to	A. 1.66 x 10^-24kg B. 1.66 x 10^-19kg C. 1.66 x 10^-34kg D. 1.66 x 10^-27kg
8	1 amu is equal to.	A. 1.66 x 10^-24kg B. 1.66 x 10^-19kg C. 1.66 x 10^-24kg D. 1.66 x 10^-27kg
9	Hydrogen atom with only one proton and one neutron in its nucleus, and one electron, is called	A. deuterium B. protium C. tritium D. none of these
10	A mass spectrograph sort out	A. molecules B. atoms C. elements D. isotopes