Which of the following is trivalent impurity ____________
Arsenis (As)
Boron (B)
Germanium (Ge)
Antimony (Sb)
In___________ the valancy band and coduction band overlap each other
Conductors
Insulators
Semiconductors
None of above
A dwped semiconductor is Called _____________________semiConductor
Pentavalent
Intrinsic
Extrinsic
In Charles law which of the following is constant
Pressure
Temperature
Volume
All of above
The resisitivity as insulator is between____________________-
The ratio CP/CV is______________________
Equal to 1
Less than 1
Greater than 1
Equal to 0.5
Which of the follwoing material is bad wnductor of heat
Copper
Glass
Steel
Aluminium
Which mode of heat transfer is fastest as all other modes
Conduction
Convection
Radilation
Cp is always_____________CV
equal to
Greater than
Smaller than
Half of
Conduction is ___________than convection
Faster
Slower
Medium
273.15 K when converted into desree celcius will become________________
32ºC
100ºC
0ºC
273ºC
100ºC will be___________when converted into forhentie
273 F
-273 F
212 F
373 F
273.15 K when conveted into Forhenite will become___________________
0ºF
32ºF
373ºF
100ºF
A Cup of tea kept on table losses its heat by______________process
Radiation
The boiling Point of water in farfhenite scale is_______________
212ºF
273ºF