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 chemical properties of an element depends upon the number of	A. electron B. position C. photons D. neutrons
2	Which of the following material has smaller has life	A. uranium B. polonium C. radium D. radian
3	The rate of decay of a radioactive substance	A. decrease exponentially with time B. decreases linearly with time C. increases linearly with time D. increases exponentially with time
4	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
5	Charge on proton is	A. 1.59 x 10^-9C B. 1.59 x 10^-7C C. -1.59 x 10^-19C D. 1.59 x 10^-19C
6	Nucleus consists of	A. proton and neutron B. protons and electron C. electron and neutron D. protons only
7	Hydrogen atom with only one proton in its nucleus, and one electron in its orbit is called	A. deuteron B. deterium C. protium D. tritium
8	The range of particle depends upon the factor	A. charge, mass and energy of particle B. density of medium C. ionization potential of the atoms D. all the above
9	The number of protons inside a nucleus is called	A. mass number B. atomic weight C. atomic number D. none of these
10	Neutron was discovered in	A. 1915 B. 1920 C. 1925 D. 1932