The gap between valance band and conduction band is called
Breakdown gap
Valancy gap
Forbidden energy gap
None of above
Arsenics (As), Antimony (Sh) and Phosphrous (P) are examples of
Divalent
Trivalent
Pentavalent
Tetravalent
Which of the following wloues reflects more heat
White
Red
Blue
Black
Chose the including material__________
Mica
Copper
Germanium
Silicon
In condutors the valancy band and Conduetion band__________________
Have small gap
have huge gap
overlap each other
Which mode of heat transfer can take place even without a medium
Condultion
Convection
Raliation
None of abve
The ratio CP/CV is______________________
Equal to 0.5
Less than 1
Greater than 1
Equal to 1
Which mode of heat transfer takes place without actual migration of particiles
Conduction
Conveection
Radiatiion
Cp is always_____________CV
Greater than
equal to
Smaller than
Half of
Which of the follwoing material is bad wnductor of heat
Steel
Aluminium
Glass
A Cup of tea kept on table losses its heat by______________process
Radiation
All of above
100ºC will be when converted into kelvin will become
212 K
273 K
373 K
-273 K
The Process by which heat reaches from surp to earth is
273.15 K when converted into desree celcius will become________________
32ºC
0ºC
273ºC
100ºC
32 F when converted into celcius will become_____________
373ºC