A beam of light has a small wavelength spread about a

Last updated: 6/11/2023

A beam of light has a small wavelength spread about a central wavelength The beam travels in vacuum until it enters a glass plate at an angle relative to the normal to the plate as shown in the figure The index of refraction of the glass is given by n 2 The angula spread of the refracted beam is given by 80 1 82 A 60 C 80 12 60 B 60 D 50 Vacuum Glass dn 2 d tan dn 2 11 d2 82