Nuclear Physics

Q: Deuterium and triton are respectively the names of

(a) :  Nucleus and atom of hydrogen
(b) :  Atom and nucleus of helium
(c) :  Atom and nucleus of hydrogen
(d) :  Nuclei of hydrogen atom
(e) :  None of these
Answer:  Atom and nucleus of hydrogen
Explanation:  

Q: When certain radiation passes through matter, it loses energy due to

(a) :  Excitation of material atoms
(b) :  Ionization of material atoms due to direct collision
(c) :  Ionization of material atoms due to electrostatic attraction
(d) :  Any of these
(e) :  None of these
Answer:  Any of these
Explanation:  

Q: In solid state detector, the reverse bias is applied through the two

(a) :  Conducting layer of gold
(b) :  Conducting layer of copper
(c) :  None-conducting layer of plastic
(d) :  Conducting layer of aluminium
(e) :  None of these
Answer:  Conducting layer of gold
Explanation:  

Q: Marie curie and Pierre curie discovered

(a) :  Uranium
(b) :  Polonium
(c) :  Radium
(d) :  Both A and C
(e) :  Plutonium
Answer:  Both A and C
Explanation:  

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