Here's the question you clicked on:
yrelhan4
i am given frequency of a photon. i have to find its momentum. any ideas?
what formulas are you given?
http://upload.wikimedia.org/math/3/8/2/382f8c0764c28cdcde234eb0d96268b1.png more info http://en.wikipedia.org/wiki/Photon
hmm. looks like i need to revise the formulas again. Thank you.