/sci/ - Science & Math

How much energy it has.

<span class="math"> E = hv [/spoiler] or <span class="math"> E = \frac{hc}{\lambda} [/spoiler]

the speed of light divided by the wavelength

The frequency at which the current that produces the electromagnetic wave is oscillating.

>>2904457
current oscillating?
>>2904428
What determines the lights energy?

>>2904522
Electromagnetic waves are produced by oscillating electromagnetic currents.

>>2904522

>What determines the lights energy?

The energy of the photons released from a reaction are based on the intensity of the light, which is based on whatever is producing the light.

>>2904555
>The energy of the photons released from a reaction are based on the intensity of the light.
That isn't so. The intensity of light tells you how many photons there are, whereas the energy of a photon is related to the frequency of the wave. They're two independent variables.

>>2904631
you are completely right. however, technically speaking the total energy depends on the number of photons ^^

Why do certain reactions cause photons to be emitted with different wave functions?

>>2904685

Yah intensity doesn't affect the energy of a single photon, but when measuring energy in light, you should take into account all of the photons hitting the surface, whether it be a photovoltaic cell or what have you, in which case intensity plays a roll.

>>2904702

good question. Its probably pretty complicated.