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Questions related from Dayakrishn Purohit
I am using Terahertz time domain system to measure the thickness of a thin film on a substrate. I am able to calculate the thickness of substrate(~100um) alone. But what signs should I see for if...
03 September 2023 5,782 7 View
Light has a dual nature, on one hand it behaves as a wave (Young's double slit experiment) and on the other hand it behaves as a particle (Photoelectric effect), somehow it is acting as both a...
01 January 1970 5,113 29 View
Why do Phonons, the quanta of lattice vibrations, has spin of 0? And what is meant by longitudinal or transverse Phonon?
01 January 1970 4,718 4 View
Consider the region of space where particles of mass m are moving independently in a particular direction at certain velocity v, what would my thermometer reads placed in this region of space...
01 January 1970 1,144 3 View
Following the postulates of Drude model, one finds positive hall coefficient value for some metals, which implies that charge carriers are other than electrons. How we can explain this via quantum...
01 January 1970 1,411 1 View
What is a root cause behind the formation of a direct or an indirect bandgap in a semiconductor ? OR What decides whether a material will have a direct bandgap or an indirect bandgap?
01 January 1970 470 3 View
What does the curve of Fermi dirac distribution curve tells ? What is on the x- axis and how it is related to points on y axis? Will it be same for all fermions? Similarly what about Bose Einstein...
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