E=hv vs E=hf
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E=hv vs E=hf
Why is frequency denoted as v in the first equation? I understand that these are the same equation and was curious as to why some equations use v.
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Re: E=hv vs E=hf
I believe that E=hv is occasionally denoted as E=hf to avoid confusion as v can also mean velocity for other equations.
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Re: E=hv vs E=hf
The v is the greek letter "nu". Like the previous person said, we only use the second equation so as to not confuse velocity with frequency. However, most of the time we use the equation with the nu.
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Re: E=hv vs E=hf
I personally prefer to use f when I'm writing down problems, just because I don't want to get mixed up between the v for frequency and the V for velocity
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Re: E=hv vs E=hf
The "v" is technically not a v, it is a Greek letter. If they use f for frequency then its probably to differentiate itself based on the context.
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Re: E=hv vs E=hf
V stands for velocity, and the symbol for frequency is the Greek letter nu, which is like an italicized v, so sometimes f is used to avoid confusion.
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Re: E=hv vs E=hf
I believe it's for better visual distinction as frequency (v as in nu) and velocity (v) share the same character. There's a symbol (a fancier looking v, honestly) to distinguish between the two, but the forum won't let me use it in a post :)
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Re: E=hv vs E=hf
Hi! I believe it is just by preference; Using v (Greek letter, not velocity) and f is interchangable.
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Re: E=hv vs E=hf
As others said, they are interchangeable! However v (Greek letter) for frequency has a little curve on the left while v for velocity is just straight, if that helps. Very nit-picky details!
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Re: E=hv vs E=hf
The difference usually depends on the context of the problem. Sometimes when v is used as velocity, f is used for frequency.
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Re: E=hv vs E=hf
Brian Bui 2A wrote:As others said, they are interchangeable! However v (Greek letter) for frequency has a little curve on the left while v for velocity is just straight, if that helps. Very nit-picky details!
Thanks for this! I probably would not have noticed that tiny detail.
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