Deformation of Solids

Q: A p-type semi conductor is:

(a) :  Positively charged
(b) :  Neutral
(c) :  Negatively charged
(d) :  Sometimes (A), sometimes (C)
(e) :  None of these
Answer:  Neutral
Explanation:  

Q: Which metal becomes super conductor within the temperature range of:

(a) :  1.18 K and 7.2 K
(b) :  Aluminium
(c) :  Zinc
(d) :  Both (A) and (C)
(e) :  Uranium
Answer:  Both (A) and (C)
Explanation:  

Q: Tick the one which is not a polymeric solid:

(a) :  Zirconia
(b) :  Polythene
(c) :  Nylon
(d) :  Synthetic rubber
(e) :  None of these
Answer:  None of these
Explanation:  

Q: The materials which conductively becomes maximum at certain temperature Tc are called:

(a) :  Conductors
(b) :  Super conductors
(c) :  Semi conductors
(d) :  Poor conductors
(e) :  None of these
Answer:  Super conductors
Explanation:  

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