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:

Step-by-step explanation:
Given:
Thickness og glass = L
Index of refraction n=1.5
Frequency = f

λ(air) 
λ(glass) = λ(air) / n
= 
= 
= 
V(glass) = fλ(glass)


Answer:
p=6.2
Step-by-step explanation:
Equation = 12 - -24 = ?
After keep, change, flip: 12 + 24 = ?
Answer = 36
The answer is 8 and 1/21 in fixed fraction.
and decimal form it would be 8.047619