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	A mass spectrograph sort out	A. molecules B. atoms C. elements D. isotopes
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	When radioactive nucleus emits aβ-particle, the proton-neutron ratio	A. decrease B. increase C. same D. none of these
4	The missing mass which is converted to energy in the formation of nucleus, is called	A. packing fraction B. mass defect C. binding energy D. none of these
5	Mass of proton is of order of	A. 10^-31gm B. 10^-27kg C. 10^-24gm D. 10⁺²⁷kg
6	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
7	Nucleus consists of	A. proton and neutron B. protons and electron C. electron and neutron D. protons only
8	When thorium nucleus emits aβ-particle, the daughter nucleus is called:	A. Protactinium B. Actinium C. Uranium D. Radium
9	An alpha particle has a charge of	A. +2e B. -2e C. -e D. +3e
10	The total charge of any nucleus is given as	A. Ze² B. Z²e C. Z/e D. Ze