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	The total charge of any nucleus is given as	A. Ze² B. Z²e C. Z/e D. Ze
2	Radiation detector are used to	A. measure intensity of radiation B. measure energy of radiation C. difference between different types of radiation D. all the above
3	The isotope/s of hydrogen is /are:	A. Protium B. Deuterium C. Tritium D. Both (A) and (B)
4	The number of protons inside a nucleus is called	A. mass number B. atomic weight C. atomic number D. none of these
5	For Protium, the mass defect is:	A. Infinite B. Zero C. Very large D. A few grams
6	Radioactivity is	A. self disruptive activity B. spontaneous activity C. exhibited by all elements under proper conditions D. both 'a' and 'b'
7	Binding energy per nucleus is	A. greater for heavy nucleus B. least for heavy nucleus C. greatest for light nuclei D. decreases for medium weight niclei
8	Which of the following material has longer half life	A. radium B. polonium C. radium D. uranium
9	The unit of decay constant is:	A. Second B. Metre C. Hour D. Year
10	The diameter of an atom is of the order	A. 10^-125m B. 10^-11m C. 10^-10m D. 10^-9m