In follow up question #2, how momentum of photons is conserved when light enters glass and again when it leaves it? Does photons become more massive as they enter refractive medium which slows its speed?
If you would like to place an order with the Physics Liquid Helium Facility, please contact the Department of Physics Business Office at 217.333.0573 to become a preauthorized PI. Then visit https://my.physics.illinois.edu/helium/ to place the order.
Department of Physics 1110 West Green Street Urbana, IL 61801-3080Physics Library | Contact Us | My.Physics | Privacy Statement | Copyright Statement