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	Fraction of the decaying atoms per unit time is called	A. decay atom B. decay element C. decay constant D. decay
2	γ-rays are	A. electrostatic waves B. electromagnetic waves C. heavy particles D. longitudinal waves
3	Which of the following material has smaller has life	A. uranium B. polonium C. radium D. radian
4	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
5	During the nuclear changes, the law/s of conservation that hold/s are that of:	A. Charge B. energy C. Momentum D. Mass
6	Beta particles are	A. hydrogen nuclei B. helium nuclei C. electrons D. photons
7	A curie represents a very strong source of	A. α-particle B. β-particle C. γ-particle D. none of these
8	Structure of the nucleus was explained by	A. J.J Thomson B. Bohr C. Millikan D. Rutherford
9	Neutron was suggested to be in the nucleus by:	A. Rutherford in 1920 B. Bohar in 1913 C. Dirac in 1928 D. Anderson in 1932
10	The chemical behaviour of an atom is determined by	A. binding energy B. atomic number C. mass number D. number of isotopes