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I read in some texts that classical physics predicted the following in the photoelectric effect,KE of electrons ejected is directly proportional to intensity oflightIncreasing the frequency would increase...
Asked on 06/15/2021 by Lumbini A Tambat
2 answerIn a physics text book I read the following:$$e/m=1.758820150(44) ×10^{11} mathrm{C/kg} $$ In this expression, $(44)$ indicates the likely uncertainty in the last two digits, $50$.How should I...
Asked on 06/15/2021
2 answerConsider the following thought experiment. There is a floating generator that produces high voltage EMF. A man standing with bare feet touching the earth surface. I heard that our earth...
Asked on 06/15/2021 by The Shortest Mustache Theorem
1 answer1 K is defined as (1/273.15)th of the temperature of the triple point of water. At least, that's how it's defined in my book. But which scale is...
Asked on 06/15/2021
5 answerWhy does the scale factor $a(t)$ in FLRW metric has only temporal dependence but not directional? If $a(t)$ had a directional dependence, I think it would violate the...
Asked on 06/15/2021
3 answerI'm having trouble following a computation from the book "quantum fields in curved spacetime" by Birrel and Davies.In the chapter Where the authors describe particle creation by a collapsing...
Asked on 06/15/2021 by Daven
0 answerFirst of all, I am new in this field and therefore if I ask a silly question please forgive me.I have a gas-cell (say 3$times$3$times$3 mm$^3$...
Asked on 06/15/2021 by Bilash Krish
1 answerIn experimental particle physics, I see 'kinematic endpoint' pop up quite often. I've made an assumption of what it is but now I am not so sure. Example sentence:"This region...
Asked on 06/15/2021 by BritChick
2 answerThere is an image in the Wikipedia about the stress-energy tensor: I have a rough understanding of the stress tensor: you imagine...
Asked on 06/15/2021 by Calmarius
3 answerI want to delve into Cartan's formulation of General Relativity but it don't really know where to look. Does anyone have any book suggestions?...
Asked on 06/15/2021 by fresh
2 answerGet help from others!
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