A jar `15 cm` long is filled with a transparent liquid. When viewed from the top, its bottom appears to be `12 cm` below. What is the refractive index of the liquid ?

Answer

`1.25`

Explanation

Here, `x = 15 cm, y = 12 cm, n = ?`
From `n = x/y`
` n = 15/12 = 1.25`