Question

A glass plate 0.9cm thick has a refractive index of 1.5 how long does it take for a ray of light to pass through the plate?

Answer 1

Answer on question # 71292, Physics / Optics

Question A glass plate 0.9cm thick has a refractive index of 1.5 how long does it take for a ray of light to pass through the plate?

Solution It takes:

$$t = \frac {d}{v} = \frac {d}{c / n} = \frac {0 . 9 \cdot 1 0 ^ {- 2}}{3 / 1 . 5 \cdot 1 0 ^ {8}} = 0. 4 5 \cdot 1 0 ^ {- 1 0} s$$

Answer provided by www.AssignmentExpert.com