Additional information to complete the question:
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 n in the introduction.
T = ___________ s
Answer:
[tex]T = \frac{15}{f}[/tex]
Step-by-step explanation:
Given:
Thickness og glass = L
Index of refraction n=1.5
Frequency = f
[tex]Wavelength = \frac{L}{10}[/tex]
λ(air) [tex]= \frac{L}{10}[/tex]
λ(glass) = λ(air) / n
= [tex]\frac{\frac{L}{10}}{1.5}[/tex]
= [tex]\frac{L}{10} * \frac{1}{1.5}[/tex]
= [tex]\frac{L}{15}[/tex]
V(glass) = fλ(glass)
[tex]= f * \frac{L}{15}[/tex]
[tex]T = \frac{L}{V_{glass}} = \frac{15}{f}[/tex]
