In Semiconduelotrs the valancy band and Condution band____________________
Have small gap
Have huge gap
overlap each other
None of above
Which of the following wloues reflects more heat
Black
Red
White
Blue
Absolute zero on kelivin scale is equal to_______________
-373K
100 K
0K
-273K
In Gay husaces law which of the following is constent
Pressure
Temperature
Volume
Act of above
For which materials as the temperature increanes condutiwity decreases
Insulator
Semi-Conductor
None of abve
Conduetor
Conduction is ___________than convection
Medium
Slower
Faster
Which mode of heat transfer is fastest as all other modes
Conduction
Convection
Radilation
Which mode of heat transfer is slowest of all other models
Radiation
Which of the follwoing material is bad wnductor of heat
Steel
Copper
Glass
Aluminium
Which mode of heat transfer takes place without actual migration of particiles
Conveection
Radiatiion
32 F when converted into celcius will become_____________
273ºC
100ºC
0ºC
373ºC
273.15 K when conveted into Forhenite will become___________________
0ºF
100ºF
373ºF
32ºF
The Boiling point of water in Kelvin scale of temperature is _______________
212 K
273 K
373 K
The Process by which heat reaches from surp to earth is
273.15 K when converted into desree celcius will become________________
32ºC