Recent content by teclordphrack

Yes this is the problem. The problem wants you to discount the reality of the situation and assume that the atom would continually absorb energy. So at what point would it emit an electron. Once it got to the work function level or some time after.

Homework Statement Here's the question: A monochromatic point source of light radiates 25 W at a wavelength of 5000 angstroms. A plate of metal is placed 100 cm from the source. Atoms in the metal have a radius of 1 angstrom. Assume that the atom can continually absorb light. The work...

I got what the original poster got using the same method BUT the solution that I found is as he said, diffrent. I think they are using the length contraction formula for some reason. The solution we have is diffrent than what is in the back of the book. The back of the book matches up with the...

you have to use λ=hc/sqrt(2Kmc^2). The answer is 150eV and is rounded to .2KeV because of sig figs with the .1nm. There is something to do with non/relative particles, i think. That you use to determine which of the 2 equations to use.

I have a problem that ask for the minimum energy of a wave that we will use to see a particle of size .1 nm. I understand that I can not see a .1 nm particle with any wave length larger than .1 nm. I thought this would be easy and I would use De Broglis relation of electron waves. (f=E/h) or...