Recent content by silence98

The Seventh Seal It's brilliant. I also love: Run Lola Run The Deerhunter Requiem for a Dream Bourne Trilogy

thanks for the complete and concise response!

Homework Statement Consider a system of N particles, with two available energy states, 0 and E. What is the ratio of particles occupying the first state, n0, to particles occupying the second state n1?Homework Equations single particle partition function Z=\Sigmaexp(-ei/kt) system partition...

Hi, I have been reading my textbook and online but I'm not sure if I understand. An EM wave attenuates in a conductor but not in a dielectric? If that is correct what does the impedance of a dielectric represent, since I thought impedance would be associated with an energy loss...

thanks

Yes, it is m=-v/u.

Homework Statement A grating having 1000 lines per mm is illuminated with sodium light of mean wavelength 589.3 nm. Determine the maximum order of diffraction that can be observed. Homework Equations dsin(\theta)=m\lambda d=slit spacing The Attempt at a Solution The order of diffraction...

Thankyou, and i apologise for my stupidity! I've got it now.

Thanks for the help, but i don't really understand the bolded part. I haven't seen that trig identity before and i can't see how it would be found.

Homework Statement Show that the maximum intensity for a diffraction grating of N slits at the first principal maximum is N^2 times bigger than for a single slit. Homework Equations I=I(0)[sin^2(NB)/sin^2(B)] where B is (\pidsin\phi)/\lambda The Attempt at a Solution I feel i...