text
stringlengths 0
197
|
|---|
What is Unit cell?
|
Smallest repeating structure in a crystal that has all properties similar to crystal structure
|
What is Atomic basis?
|
Every point in space lattice is associated with one or more atoms is called atomic basis
|
What is Space lattice?
|
Infinite 3d array of points in which every point has surroundings identical with that of every other point.
|
What is Susceptibility?
|
Magnetic susceptibility is the measure of extent to which a material may be magnetized by applied magnetic field.
|
What are Diamagnetic materials?
|
Materials which weakly repell magnetic field and do not retain magnetic properties when external field is removed.
|
What are Paramagnetic materials?
|
Materials which are slightly attracted by a magnetic field but do not retain the magnetic properties when external field is removed.
|
What are Ferromagnetic materials?
|
Materials which are strongly attracted by magnetic field and retain their magnetic properties when external field is removed.
|
What are ferrimagnetic materials?
|
Materials in which unequal opposite magnetic moments are present.
|
What is Flux?
|
Flux is the number of magnetic field lines passing through a surface.
|
What is Flux density?
|
The number of magnetic field lines passing through unit area.
|
What is domain?
|
A group of atomic magnets pointing in the same direction is called domain.
|
What is p type?
|
Semiconductors doped with trivalent atoms
|
what is n type?
|
Semiconductors doped with pentravalent atoms
|
What is on pn junction diode?
|
Interface between p type and n type semiconductor
|
What is forward biased?
|
In forward biased the p side of the diode is attached to positive terminal and n side to negative terminal of the battery.
|
What is reversed biased?
|
In reverse biased the p side of diode is attached to negative terminal and n side is attached to positive terminal
|
What is Band gap?
|
Distance between valence band of electrons and conduction band.
|
What is Fermi level?
|
It is the highest energy level that an electron can occupy at absolute zero temperature.
|
What is valence band?
|
Highest level of completely filled band by electrons
|
What is conduction band?
|
Lowest level of empty band.Conductivity of semiconductor increases with increase in temperature.Probability of finding electron in conduction band and valence band is zero
|
What is formula for time period in Torsional Pendulum?
|
T = 2π√l/3g
|
What is formula for time period Compound Pendulum?
|
T= 2π√l/g
|
What is radius of gyration?
|
Radial distance to a point which would have moment of inertia same as the distribution of mass if the whole mass was concentrated at that point.
|
What is band gap?
|
The energy difference between highest level of valence band and lowest level of conduction band.
|
What is Fermi energy level?
|
It is highest energy level that an electron can occupy at absolute zero temperature.
|
What is Fermi energy?
|
Maximum energy that an electron can possess at absolute zero temperature.
|
What is potential barrier?
|
Postential difference developed accross the pn junction due to diffusion of electrons from n region to p region.
|
What is depletion region?
|
Gap created across the pn junction which is devoid of charge carriers. It contains immobile charge carriers.
|
What is doping?
|
Doping is introduction of impurities to intrinsic semiconductors to vary the number of number of electrons and holes.
|
Why circular pattern is observed?
|
Because of the same thickness of air from all sides
|
What if we increase the wavelength
|
The diameter of the ring will increase
|
What is Newton's Rings?
|
It a phenomenon in which interference pattern is created by reflection of light between two surfaces , the spherical surface and the flat surface.
|
What is specific heat capacity?
|
The amount of heat required to raise the temperature of 1 g of a substance by 1 degree celcius is called specific heat.
|
What is latent heat?
|
The energy that is absorbed or released during the phase change of a substance.
|
What is 1 cal?
|
1 cal is the amount of heat required to raise the temperature of 1 g of water by 1°C.
|
What is convection?
|
Convection is the process of heat transfer due to movement of molecules in fluid.
|
What is radiation?
|
Radiation is the process of heat transfer through electromagnetic waves.
|
What is conduction?
|
The process of Heat transfer due to vibration of atoms.
|
End of preview. Expand
in Data Studio
README.md exists but content is empty.
- Downloads last month
- 3