How many fundamental quantities are there in SI Units system?
Three
Five
Seven
Six
What is SI Unit of Amount of Substance?
Gram
Mol
Kg
Newton
For which materials as the temperature increanes condutiwity decreases
Semi-Conductor
None of abve
Insulator
Conduetor
In N - Type Semiconductor mayjority carriers are______________--
Holes
Electrons
Both of above
None of above
SI Unit of temp is__________________
K [ Kelvin ]
F [ Farhenite ]
ºC [ Celcius ]
J [ Joule }
A Pentawalent Impurity is called as____________impurity
Doner
Exteinsic
Acceptor
Intrinsic
Who are minority change Carriers is N-type semi-conductors
In P-type Semi-conductor,Doping increases number of_________________
Both notes and electrons
Temperature scales degree celsius (º0) and Fathenite (OF) are related by
100ºC will be___________when converted into forhentie
-273 F
273 F
373 F
212 F
100ºC will be when converted into kelvin will become
373 K
212 K
-273 K
273 K
The error due to change in surrounding temp will be called
Instrumental error
Random error
Systematic error
All of above
Change is a ____________ Quantity
Fundamental
Derived
Fundamental and deviede
1Volt is given by __________________________-
1C/1J
1A/1J
1A/1C
1J/1C
According to coulombs law Force of attraction is directly propartional to____________________________
Distance between charges
Mutipuication of Charges
Square root of distance between charges
Square of distances between charges
Which mode of heat transfer takes place without actual migration of particiles
Conduction
Conveection
Radiatiion
The ratio CP/CV is______________________
Greater than 1
Equal to 1
Equal to 0.5
Less than 1
Which mode of heat transfer is slowest of all other models
Convection
Radiation
Which of the follwoing material is bad wnductor of heat
Aluminium
Copper
Steel
Glass
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 is good conductor of Heat
Glass has good reflective porperty