Einstein Equation

[Yazmin Bocanegra 3L]

What do the "h" and "v" stand for in Einstein's equation, E=hv?

[Michael Nguyen 1E]

The h stands for Planck's constant, which is provided on the constants sheet.
The v stands for the frequency of EM radiation that is being used in the calculation.

[105289321]

Plancks constant and frequency

[Leyla Anwar 3B]

In E=hv,
h = planck's constant --> 6.626 x 10^-34 ; since this is a constant it will always be this value
v = frequency (Hz)

[Michael Sun Dis 3G]

The "h" is Planck's constant, around 6.626x10^-34 Js. The "v" is the frequency of the photon.

[Becca Nelson 3F]

These variables are h for Planck's constant (6.6.26 x 10^-34) and v for frequency. The v for frequency can also be seen in c=(wavelength)(v). With the only terms in E=hv being a constant and v, we see how it does not matter the intensity of the light but only the frequency. This goes back to Dr. Lavelle's analogy about the cross country runners and the barrier. Hope this helps :)

[Crystal Pan 2G]

E= hv

h= planck's constant

v(nu)= frequency (Hz or )

[Jason_John_2F]

h is planck's constant which is always 6.62607015×10−34 js and v is the frequency which is how often a wave passes a given point per second.

[Sophia Kalanski 1A]

h stands for the plank constant and the v stands for the frequency. You can also, if you need to find the wavelength, use the frequency (v) and rewrite it as c/wavelength. This will get you E=hc/wavelength. C is the speed of light in the vacuum which is a constant and it is 3.00*10^8

[LeanneBagood_2F]

Adding on to this question, is there a specific way we should be writing the "v" or frequency in the equation E = hv? Every lecture I get a bit confused because the symbol for frequency looks exactly like "v" for velocity and i'm not too sure how to make a distinction.

[Hasan Mirza 3F]

The ν used for frequency is the greek letter "nu" which looks almost identical to a v. I think for the most part problems should be pretty clear on what is being asked for, such as when a wavelength is given.