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An electron has principal quantum number 3. The number of its (i) sub-shells and (ii) orbitals would be respectively:
(1) 3 and 5
(2) 3 and 7
(3) 3 and 9
(4) 2 and 5
Ans :3 and 9
Differentiate between extrinsic and intrinsic semiconductor. Obtain an expression for the carrier concentration for an intrinsic semi-conductor. Also demonstrate that Fermi level i
What does the HA and A- stand for in buffer solution equations? Ka=HA/A-
C3N4
trailing of mercury
The uncertainty in momentum of an electron is 1 x 10 -5 kgm/ s . The uncertainity in its position will be( h= 6.63 x 10 -34 Js) : (1) 5.28 x 10 -30 m
Environmental pollution caused by oxides and oxyacids f nitrogen and sulphur
how much calcium carbonate does a rain water contain?
Q. Define Food spoilage? Food spoilage is a major concern of all people. Spoilage by growth of bacteria, yeasts and moulds limits the time that the food can be stored and still
Scale and sludge formation in boiler
uses of this topic
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