A Pure semiconductor is Called ___________semiconductors
Trivalent
Extrinsic
Pentavalent
Intrinsic
In condutors the valancy band and Conduetion band__________________
Have small gap
have huge gap
overlap each other
None of above
Which of the following is trivalent impurity ____________
Germanium (Ge)
Boron (B)
Arsenis (As)
Antimony (Sb)
Absolute zero on kelivin scale is equal to_______________
0K
100 K
-373K
-273K
Which of the following is highest energy band
Valancy band
Energy band
Conduction band
Conduction is ___________than convection
Slower
Faster
Medium
The ratio CP/CV is______________________
Greater than 1
Equal to 1
Equal to 0.5
Less than 1
Which of the follwoing material is bad wnductor of heat
Steel
Aluminium
Glass
Copper
Which mode of heat transfer is fastest as all other modes
Conduction
Convection
Radilation
Which mode of heat transfer takes place without actual migration of particiles
Conveection
Radiatiion
273.15 K when converted into desree celcius will become________________
100ºC
32ºC
0ºC
273ºC
The Process by which heat reaches from surp to earth is
Radiation
100ºC will be when converted into kelvin will become
373 K
273 K
212 K
-273 K
32 F when converted into celcius will become_____________
373ºC
273.15 K when conveted into Forhenite will become___________________
100ºF
32ºF
0ºF
373ºF