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	Radioactivity was discovered by:	A. Becquerel B. Marie curie C. Pierre curie D. All of them
2	In radio-active decay, the original element which disintegrate to another element is called	A. element B. daughter element C. parent element D. none of these
3	Which of the following material has smaller has life	A. uranium B. polonium C. radium D. radian
4	The range ofβ-particle in air is greater than that ofα-particle by	A. 1000 times B. 100 times C. 15 times D. 10 times
5	Structure of the nucleus was explained by	A. J.J Thomson B. Bohr C. Millikan D. Rutherford
6	If 'V' is the relativistic speed and 'C' is the speed of light then according to Einstien the factor V/C must always be	A. Equal to 1 B. Less than 1 C. Greater than 1 D. Infinity
7	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
8	Mass of neutron is	A. 1.67 x 10^-31kg B. 1.67 x 10^-27kg C. 9.1 x 10^-31kg D. 1.67 x 10^-19kg
9	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
10	When a charged particle passes through matter, it produces ionization, this effect is used in	A. fission reaction B. reactor C. radiation detector D. fusion reaction