A piece of glass (n = 1.5) shaped as shown on the right is struck by a ray of li

Question

A piece of glass (n = 1.5) shaped as shown on the right is struck by a ray of light coming in perpendicular to the surface of side A. The glass is surrounded by air (n = 1.0).

(d) What is the critical angle (for total internal reflection) for this material? Show your
work.

(e) Rather then 30 degrees, what should the minimum angle be at the top of the glass so that the ray undergoes total internal reflection at surface B? Make a sketch below showing the path of the ray striking surface B, and the angles involved.

Explanation / Answer

criticle angle is

sin theta _C = n1/n2

theta_C = sin^-1 ( 1/1.5) = 41.81

need iitial diagram to draw for the part e

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.