Home » Ask Physics » Problem from Ray Optics

Problem from Ray Optics

A diverging beam of light from a point source S having divergence angle alpha falls symetricaally on a glass slab as shown in fig.The angles of incidence of the two extreme rays are equal.If the thickness of the glass slab is t and the refractive index is n,then the divergence angle of the emergent beam is,
a)0
b)alpha
c)sin inverse 1/n
d)2 sin inverse 1/n

 

Visitors So Far @ AskPhysics

  • 2,043,989 hits

Subscribe to Blog via Email

Enter your email address to subscribe to this blog and receive notifications of new posts by email.

Join 3,931 other subscribers

askphysics@Twitter

%d bloggers like this: