What is SI unit of Angle
Candela
Theta
Radian
degree
Which of the following is a derived quantity
Luminious Intensity
Weight
Mass
Electric Current
In Semiconduelotrs the valancy band and Condution band____________________
Have small gap
Have huge gap
overlap each other
None of above
In P-Type semiconductor mayorty cariers are _________________
Holes
Electrons
Both of above
For which materials as the temperature increanes condutiwity decreases
Semi-Conductor
None of abve
Insulator
Conduetor
When Antimony (As) is added to Pure silicon (Si) we get__________SemiCondutor
N-type
P-type
The electrical prperties of material depends upon number of elctrons in______________________
Innermost orbit
Outermost Orbit
In Insulators energy gap between conduction band and energy band is________________________
Nearly 1 ev
Between 1ev and 5ev
Above 5 ev
Additian & measurement 12.241 cm, 4.51 cm & 4.0 cm in significant figure is_____________________
20.750
20.75
20.7
20.751
273.15 K when converted into desree celcius will become________________
0ºC
100ºC
273ºC
32ºC
The Boiling point of water in Kelvin scale of temperature is _______________
212 K
273 K
373 K
100 K
How many significant figures this reading has 0.0069
4
5
2
3
"Weber" is SI unit of ___________________________
Magnetic filed intensity
Magnetic Strength
Electric field intensity
Magnetic flux
Protons in atom are ______________________charged
Positive
Negative
Neutral
When resistences are connected in parallel ____________ is same
Current
Voltage
Charge
Which mode of heat transfer is fastest as all other modes
Conduction
Convection
Radilation
Cp is always_____________CV
Greater than
Smaller than
equal to
Half of
Conduction is ___________than convection
Faster
Slower
Medium
Which mode of heat transfer takes place without actual migration of particiles
Conveection
Radiatiion
There flask cused to keep liqued Hot or coll for long times has double walled glass vessel because
Glass is bad conductor of heat
Glass is light in weight
Glass has good reflective porperty
Glass is good conductor of Heat