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	For Protium, the mass defect is:	A. Infinite B. Zero C. Very large D. A few grams
2	Phenomenon of radioactivity is due to disintegration of	A. nucleus B. neutron C. proton D. molecule
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	Alfa , beta and gamma rays are emitted from a radio-active substance	A. spontaneously B. when it is heated C. when it is exposed to light D. When it interacts with the other particle
5	Fraction of the decaying atoms per unit time is called	A. decay atom B. decay element C. decay constant D. decay
6	Nucleus consists of	A. proton and neutron B. protons and electron C. electron and neutron D. protons only
7	There is present in paraffin a large amount of:	A. Nitrogen B. Hydrogen C. Carbon D. Baryllium
8	Proton was discovered by Rutherford in	A. 1915 B. 1906 C. 1910 D. 1920
9	A particle having the mass of electron and charge of a proton is called a	A. photon B. position C. antiproton D. antineutrino
10	The penetration power ofβ-particle is	A. zero B. less thanα-particle C. equal toα-particle D. greater thanα-particle