In the bionomial expansion (1+x)^p , p can be integer or fraction. The coefficients are written as p
C
j . For this to hold p>= j. (j= integer). What happens if p=1/2,-1/2 or any other fraction? How can one use the same combination...
Under the influence of periodic potential this negative mass concept does arise.
When an electron goes to zone boundary, it collides with crystal ions and loses its momentum.An energetic electron then loses momentum due to collision. So d/dE(dE/dK) becomes -ve and m comes out to be so.
As e-...
are semiconductors charged? i mean '"n" type contains excess of electrons, so they should be charged...
please tell me where i am wrong
tks for any answer...
Normal and tangential directions are forms of a vector(if it has anything like that). They are itself vectors and are not components.Components are magnitudes(in x,y,z direction, suppose)that make up a vector.
classically a particle can't exist in a region where V>E, v=pot energy, E=total energy, but quantum mechanically its possible. We can explain it(or draw an analogy) with concepts of optics,when light falls from a denser medium to rarer medium.but that wave is a real one,the quantum mechanical...
Can anyone tell me how is wavelength defined for a wave associated with a particle?
If the wave function we are speaking of has no physical significance,then how can measure its length?
tks for any rpl
in schrodinger equation(time independent)
d^2y/dx2= 2m/h^2(V-E)y, V is a function of position coordinate, y is eigenfunction.
if E>V , y being -ve or +ve it would be a oscillatory function. The allowed energy values are continously distributed...