Recent content by Discostu19

Show how the band model can explain the relationship between the optical and electronic properties of solids? any ideas one were to start looking? lost with this question

cheers :)

erm i think we have yes we've done a lot of electron tunnelling but not sure.

Heat and Entropy Change HELPPPP! Calculate change in entropy of the universe for: 1] A can of coke, at initial temperature of 5 degrees C, with heat capacity 2500JK-1, is allowed to reach thermal equilibrium with its surroundings at 40 degrees C 2] Two Cans of coke at 5 degrees C and 40...

assuming that the electron has an incident energy of 8eV and that the barrier is of height Vo=13eV and width L=5x10-10m calculate the probability that the electron will be able to tunnel through the barrier.Relevant equations= k = (sqrt(2m(V-E)) /h-answer (sqrt(2x9.1x10-31(13-8)x1.6x10-19)x2pi...

Genetic Engineering yey or ney?? Hey, just wondering what peoples views are on q. Is genetic engineering of animals/humans really necessary? :smile:

Homework Statement Q) 1]Neutral pion decays into 2 photons which then decay into electron-positron pairs. What would the feynman diagram look like? 2] Why is this decay of the neutral pion difficult to identify in bumble chambers? Homework Equations feynman diagram...

Homework Statement Q) Neutral pion decays into 2 photons which then decay into electron-positron pairs. What would the feynman diagram look like? :confused: