Question

PLEASE HELP!!! Will give a medal!!!
What is the energy of a single photon of visible light with a wavelength of 500.0 nm? 1 nm = 10^ -9m

Answer 1

I can partially answer your question. First we must find find the frequency of this wave. There is a relationship between wavelength and frequency, which is:
\[\lambda v = c\]

Where lampda is wavelength and 'c' is the speed of light.
\[v = \frac{ c }{ \lambda }\]

The energy is defined by this:
\[E = hv = h \times \frac{ c }{ \lambda }\]

Where 'h' is planck constant. I don't know the exact value of speed of light and the plack constant. That's all I remember. I hope it will help.

Answer 2

Thanks, That does help!