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Homework Statement
A beam of light from a monochromatic laser shines into a piece of glass. The glass has a thickness L and an index of refraction n . The wavelength of the laser light in vacuum is L/10 and its frequency is f. In this problem, the constant should not appear in any of your answers.
How long does it take for a short pulse of the light to travel from one end of the glass to the other?
Homework Equations
None of any significance i can think of that will help us here
The Attempt at a Solution
t = (L/10)(f)(n)