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jcvince17
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Homework Statement
A beam of light from a monochromatic laser shines into a piece of glass. The glass has thickness L and index of refraction n=1.5. The wavelength of the laser light in vacuum is L/10 and its frequency is f. In this problem, neither the constant c nor its numerical value should appear in any of your answers
How long does it take for a short pulse of light to travel from one end of the glass to the other?
Express your answer in terms of some or all of the variables f and L. Use the numeric value given for in the introduction.
Homework Equations
c = [tex]\lambda[/tex] * f
f = 1/t
n = c/v
The Attempt at a Solution
t = 15/f
i know this answer is correct, but I still cannot come up with how the correct answer was derived.
https://www.physicsforums.com/archive/index.php/t-225369.html
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