Problem: How long does it take for a short pulse of light to travel from one end of the glass to the other? 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. 

FREE Expert Solution

Time, t = d/v

v = c/n

t = nL/c

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Problem Details

How long does it take for a short pulse of light to travel from one end of the glass to the other? 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.