Check Answer

[redhot209]

http://img11.imageshack.us/img11/2179/question1.jpg [Broken]
Answer was 4.054 x 10^-15

http://img404.imageshack.us/img404/601/question2.jpg [Broken]
Answer was 52.2226

 

[RoryP]

hmm as you can probably see your value for plancks constant is way off what it should be! Out of interest could you show us how you came about that value?
Also we should need the work function of the metallic surface in order to calculate h.
Again could you please show working for the second problem, that way we can see any mistakes you may have made as i got different answers to you for both problems =]