How many fundamental quantities are there in SI Units system?
Six
Seven
Three
Five
Which of the following is fundamental unit ?
Mol
Kelvin
Candella
All of above
SI Unit of temp is__________________
ºC [ Celcius ]
K [ Kelvin ]
F [ Farhenite ]
J [ Joule }
Which of the following wloues reflects more heat
Black
Red
White
Blue
Which of the following is NOT an insulator
Wood
Mica
Copper
Rubber
In N-type semiconductor Doping increases number as _______________
Electrons
Holes
Both of above
When Antimony (As) is added to Pure silicon (Si) we get__________SemiCondutor
N-type
P-type
None of above
When Aluminium (Al) is added to Pure Germanium (Ge) we get___________Semiconductor
Additian & measurement 12.241 cm, 4.51 cm & 4.0 cm in significant figure is_____________________
20.751
20.750
20.75
20.7
273.15 K when converted into desree celcius will become________________
0ºC
100ºC
273ºC
32ºC
32 F when converted into celcius will become_____________
373ºC
The error due to worng settings in instrumental is called
Instrumental error
Random error
Systematic error
SI unit of electric field Intensity is_____________________
N/C
C/N
N/m
Electrons in atom are_______________changed
Positive
Negative
Neutal
Protons in atom are ______________________charged
Neutral
Which of the follwoing material is bad wnductor of heat
Glass
Aluminium
Steel
Cp is always_____________CV
equal to
Half of
Smaller than
Greater than
Conduction is ___________than convection
Medium
Faster
Slower
Which mode of heat transfer is fastest as all other modes
Conduction
Convection
Radilation
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 has good reflective porperty
Glass is good conductor of Heat
Glass is light in weight