On Sun, 12 Jul 2015 19:54:44 -0700, Jeff Liebermann
wrote:
Oops. I goofed in typing in several places. The last part should be:
(d) Energy_of_Photon = hf = 6.63*10^-34 * 2*10^9 J = 1.3*10^-24 J
where h=6.63*10^-34
Js (Plank's constant)
This is the energy of a 2.5 MHz photon.
From (a), PV=5.5*10-^18
Js^-1 m^-2
Therefore, number of photons =
(5.5*10^-18 / 1.3*^10^-24) = 4.2*10^6 m^-2 s^-1
Hmm... I have no idea where the "2.5 MHz" came from or the strange
units for the "number of photons".
--
Jeff Liebermann
150 Felker St #D http://www.LearnByDestroying.com
Santa Cruz CA 95060
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Skype: JeffLiebermann AE6KS 831-336-2558