The Property of an object that can be measured with a measuring instruments is known as______________.
Physical system
Physical quantity
Physical attribute
Physical Unit
Which Of the following is Fundamental quantity
Electric Current
Electric resistence
Electric Voltage
Electric Charge
Which of the following is trivalent impurity ____________
Arsenis (As)
Boron (B)
Germanium (Ge)
Antimony (Sb)
In insulators the Valancy band and condution band_________________
Have small gap
Have huge gap
overlap each other
None of above
Chose the including material__________
Copper
Germanium
Silicon
Mica
A trivalent impurity is called as _______________impurity
Doner
Exteinsic
Acceptor
Inteinsic
In N-type semiconductor Doping increases number as _______________
Both of above
Holes
Electrons
A Pentawalent Impurity is called as____________impurity
Intrinsic
If length of a component is 20.15 0.02, If two such component are joined together what will be total length
40.30 0.01
40.30 0.04
40.30 0.08
40.300.02
The Process by which heat reaches from surp to earth is
Conduction
Radiation
Convection
A Cup of tea kept on table losses its heat by______________process
All of above
How many Significant Figures this reading has 19700
2
3
4
5
According to coulomb's loa and Force of attraction/repulsion is inversely proportional to________________________
Square root of distance between charges
Mutipuication of Charges
Distance between charges
Square of distances between charges
Unlike charges________________each Other
Attract
Repet
Neither attract nor repel
Electrons in atom are_______________changed
Positive
Negative
Neutal
Which mode of heat transfer can take place even without a medium
Condultion
Raliation
None of abve
The ratio CP/CV is______________________
Equal to 1
Less than 1
Greater than 1
Equal to 0.5
Which mode of heat transfer is slowest of all other models
Cp is always_____________CV
Greater than
Half of
equal to
Smaller than
There flask cused to keep liqued Hot or coll for long times has double walled glass vessel because
Glass has good reflective porperty
Glass is bad conductor of heat
Glass is light in weight
Glass is good conductor of Heat