a) What is the threshold frequency for the photoelectric effectof molybdenum ( w

Question

a) What is the threshold frequency for the photoelectric effectof molybdenum (workfunction, = 4.2 eV)?
b) What is the stopping potential (in ev) if the wavelength ofthe incident light is 290 nm?


I got 1.013e15 Hz for part a, which I know is correct...butI'm not sure how to get part b. I'd appreciate any help!
b) What is the stopping potential (in ev) if the wavelength ofthe incident light is 290 nm?


I got 1.013e15 Hz for part a, which I know is correct...butI'm not sure how to get part b. I'd appreciate any help!
I got 1.013e15 Hz for part a, which I know is correct...butI'm not sure how to get part b. I'd appreciate any help!

Explanation / Answer

Then there's an error in the system. You and I both agree onhow to determine stopping potential, and our definition is the onethat is generally accepted by the physics community at large. . Webassign (or whatever your homework system is) does havemistakes. I've emailed the Webassign people myself several times tohave them correct the ones I've found. . Not sure what you want here... there is no magic answer. Theright answer is the one I gave you.

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