Welcome to Laser Pointer Forums - discuss green laser pointers, blue laser pointers, and all types of lasers

LPF Donation via Stripe | LPF Donation - Other Methods

Links below open in new window

ArcticMyst Security by Avery

Hard physics question not for the faint of heart.






Joined
Dec 25, 2009
Messages
140
Points
0
The difference velocity works, difference in time travelled works, but considering a waveLENGTH is given, and a LENGTH is asked, why convert twice? But your answers and logic are correct, so it's not really a problem.

An interesting question for you: I have a parallel light beam, and I block the center of the beam by an object. But right behind this object (again in the center of the beam) I still find light. What effect is causing this?
The name of the physicist that thought this was impossible is actually the name of our student union. This spot is named after the physicist that first observed it.

Constructive interference from the diffracted lightwaves.
 




Top