Two pulse of light (red and blue) enter a huge block of glass at the same time. The glass is 12.00 miles thick. The red light has an index of refraction of 1.52 inside the glass and emerges at the other end 1.80 miles a head of the blue light pluse.
a) how long does it take for the red light to trvel through the glass?
b) What is the index of refraction for the blue light in the glass?
c) what is the time between the red and blue pules?