Saved Bookmarks
| 1. |
A large glass slab (μ = 5/3) of thickness 8 cm is placed over a point source of light on a plane surface. It is seen that light emerges out of the top surface of the slab from a circular area of radius R cm. What is the value of R? |
|
Answer» sin C = 1/n = 3/5 = R/(R2 + t2)1/2 t = 8 Cm R = 6 Cm |
|