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awarded Curious
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awarded Popular Question
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awarded Yearling
Feb
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awarded Yearling
Nov
21
comment branch points of arcsin
Sir, i was thinking of finding branch point of $\arcsin$ through the poles its derivative $\displaystyle\frac{1}{\sqrt{1-x^2}}$ ? since by Cauchy's theorem, the function will have different values when going around arbitrary small closed loop around such point ?
Nov
21
asked branch points of arcsin
Nov
19
comment Reflectance and phase shift vs incident angle and wavelength
i thought so too, but the question asked to plot the graph for different wavelengths of the same refractive index N of the substrate :O
Nov
19
awarded Editor
Nov
19
revised Reflectance and phase shift vs incident angle and wavelength
deleted 46 characters in body
Nov
19
asked Reflectance and phase shift vs incident angle and wavelength
Nov
13
accepted Wave function of Hydrogen Atom
Nov
13
comment Wave function of Hydrogen Atom
THank you, just a small question: so it s ok to use $\langle\psi_n|E|\psi_n\rangle=-13.6eV/n^2$ ?
Nov
13
awarded Supporter
Nov
13
comment Wave function of Hydrogen Atom
also, is there any short, elegant way to calculate $\Psi*E\Psi$, $\Psi*L^2\Psi$, $\Psi*L_z\Psi$, Thank you ~
Nov
13
comment Wave function of Hydrogen Atom
P(100)=2/7, P(200)=9/14, P(322)=1/14 P(otherstate)=0 i already knew this. How to check if this is an eigen function of parity ( if it's an even or odd function) ? i feel i need to understand each subscript and how they behave under parity operator
Nov
13
asked Wave function of Hydrogen Atom
Nov
13
awarded Scholar
Nov
13
accepted Energy band diagram of a system of Silicon Quantum dots
Oct
24
revised Properties of analytic function in a disc
added 38 characters in body
Oct
24
asked Properties of analytic function in a disc
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