Viii. The block of glass (n = 1.5) shown in fig 4.15 is surrounded by air. A ray of light enters the block at its left-hand face with incident angle 0, and reemerges into the air from the
right-hand face directed parallel to the block's base. Determine thatre one​

Aparticle of mass m is placed in a one-dimensional box of length l. the box is so small that the particle’s motion is relativistic, so that e p2/2m is not valid. (a) derive an expression for the energy levels of the particle using the relativistic energy–momentum relation and the quantization of momentum that derives from connement. (b) if the particle is an electron in a box of length l 1.00 1012 m, nd its lowest possible kinetic energy. by what percent is the nonrelativistic formula for the energy in error?