A ray of white light strikes the surface of a 4.0-cm- thick slab of flint glass as

Question:

A ray of white light strikes the surface of a 4.0-cm- thick slab of flint glass as shown in Figure P19.31. As the ray enters the glass, it is dispersed into its constituent colors. Estimate how far apart the rays of deepest red and deepest violet light are as they ex it the bottom surface. Which exiting ray is closer to point P?

4.0 cm 60 FIGURE P19.31