Recent content by t1mbro

I've been doing some working with a michelson interferometer, specifically finding the refractive index of a glass block. I am given this eqn: n = (2t-ML)(1-cos)/ (2t (1 - cos) - mL) Where n is the refractive index of the glass M is number of fringes passing I have left the thetas out...

Still having a little problem with part (a), anyone any ideas?

Qm, infinite sq well doubles in width (reposted more clearly) Edit: posting a little clearer. I was asleep when I did this last time I don't have any notes and have to sit an exam tomorrow so i would appreciate a little help understanding this. I have the answers so i don't need them just a...

oh that's all so easy, thanks edgardo!

ok, what you said makes sense, except, why is it a vector? am i being utterly stupid?

Ok so I am revising for an exam that's in a day or so and I'm totally stuck on some revison questions, needless to say i need to understand what's going on not just get an answer so if somone can help me do this I would be grateful. Should be pretty easy it's basic stuff from last yr but my mind...