# A pond appears to be 2.7 m deep. If the refractive index of water is 4/3

Light (10)
A pond appears to be 2.7 m deep. If the refractive index of water is 4/3, find the actual depth of the pond.

### Answer

Apparent depth = 2.7 m

μ = actual depth [Real depth] / Apparent depth

4/3 = X/2.7

X = 4/3 x 2.7

= 3.6 m