by admin | Jun 3, 2015 | sem1
Spontaneous and stimulated emission Spontaneous emission If a collection of atoms are in the excited state, spontaneous decay events to the ground state will occur at a rate proportional to N2, the number of atoms in the excited state. The energy difference between...
by admin | Jun 3, 2015 | sem1
Absorption Coefficient Definition and Formula The absorption coefficient determination how far into a material light of a particular wavelength can penetrate before it is absorbed. In a material with a low absorption coefficient, light is only poorly absorbed, and if...
by admin | Jun 3, 2015 | sem1
Non Destructive Testing Nondestructive testing or Non-destructive testing (NDT) is a wide group of analysis techniques used in science and industry to evaluate the properties of a material, component or system without causing damage.The terms Nondestructive...
by admin | Jun 3, 2015 | sem1
Acoustic Grating Principle: When ultrasonic waves are passed through a liquid, the density of the liquid varies layer by layer due to the variation in pressure and hence the liquid will act as a diffraction grating, so called acoustic grating. Under this condition,...
by admin | Jun 3, 2015 | sem1
Growth and Decay method (A) Growth of current Suppose in the beginning we close the switch in the up position as shown in below in the figure Switch is now closed and battery E,inductance L and resistance R are now connected in series Because of self induced emf...
by admin | Jun 3, 2015 | sem3
Member Functions in Classes Member functions are the functions, that has declaration inside the class definition and works on the data members of the class. The definition of member functions can be inside or outside the definition of class. If the member function is...
