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 an atom having atomic number Z and atomic weight A, the charge on the nucleus is	A. A - Z B. A + Z C. Z D. A
2	Which of these is not a radiation detector	A. Wilson cloud chamber B. cyclotron acceleration C. Geiger Miller counter D. solid state detector
3	The nucleous of uranium -235 differs from a nucleous of a uranium -238 in that the later contains	A. 3 more neutrons B. 3 more electrons C. 3 more protons D. 3 more ions
4	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
5	The number of all the protons and neutrons in a nucleus is known as	A. atomic number B. mass number C. charge number D. none of these
6	The nucleus/nuclei of hydrogen is/are:	A. Proton B. Deuteron C. Triton D. All of these
7	Proton was discovered by Rutherford in	A. 1915 B. 1906 C. 1910 D. 1920
8	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
9	In wilson cloud chamber, the air becomes saturated with:	A. Alcohol vapours B. Water C. Helium gas D. Nitrogen gas
10	U-238 present in the natural uranium is about:	A. 59% B. 0.007% C. 99% D. 39%