General Physics
Calculate the time taken by light to travel 1cm thickness of glass of u =1.5
2 Answers
Saurabh Koranglekar
Vikas TU
Simply put, the speed of light in your glass is about v = 2*10^ 8 m/s.
Thus, a distance of s = 1 m in this glass will be covered by the photon in:
t = s/v = 5*10^-9 s = 5 ns.
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