Calculate the energy of one photon of this radiation in joules.
I want to use c=(wavelength) V
But I'm not sure how to get that into J after i find v.. Ideas?!
2006-10-22 08:02:59 · 3 answers · asked by Anonymous in Science & Mathematics ➔ Physics
The energy of a photon is described by the equation E = h*v, where h is Plank's constant (6.62*10^(-34) J*s) and v the frequency.
Using v = c / l (where l = wavelength), you can calculate v and then insert it into the upper equation! This gives you the following expression for the energy in J:
E = h*c / l
I hope my answer was helpful!
2006-10-22 08:08:46 · answer #1 · answered by Lola 2 · 1⤊ 0⤋
Hi. Don't know the formula but that is an extremely small wavelength. I would guess a gamma ray. Someone else here knows how to calculate, I'm sure.
2006-10-22 08:07:44 · answer #2 · answered by Cirric 7 · 0⤊ 1⤋
E = h*c/lambda is an equation you would do well to remember.
624 nm is red. Many red laser pointers are nominally 630 nm
2006-10-22 09:11:00 · answer #3 · answered by arbiter007 6 · 0⤊ 0⤋