A ray of light incident normally on a glass slab of refractive index 3/2, travels a distance of 6 cm in glass in time t. What will be the distance tra
A ray of light incident normally on a glass slab of refractive index 3/2, travels a distance of 6 cm in glass in time t. What will be the distance travelled by the ray in the same time (t) if it travels in air ?
A. 3cm
B. 6 cm
C. 9cm
D. `3sqrt(3) cm`
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Correct Answer - C
Distance travelled in air =n[Distanced travelled in the medium ]`=1.5xx6=9` cm
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