A laser beam with vacuum wavelength 600 nm is incident from air onto a block of glass . The line of sight of the photograph is perpendicular to the plane in which the light moves.take 01 to be 60 degrees recall that the index od refraction of air is 1 and class is 2.50
A) find the wavelength of the light in glass
B) find te refraction angle
C) if we regardard the glass and thin film find the minimum thickness of this glass when it has first constructive interference.