A glass plate 0.9cm thick has a reflective index of 1.50. how long does it take for a pulse of light to pass through the plate? [c = 3.0 x 8 ms-1]

Question 1 Report

A glass plate 0.9cm thick has a reflective index of 1.50. how long does it take for a pulse of light to pass through the plate?
[c = 3.0 x 8 ms-1]

4.5 x 10-11s

4.5 x 10-10s

4 .5 x 10-12 s

3.0 x 10-10s

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