Question

Ron fills a beaker with glycerin (n = 1.473) to a depth of 5.0 cm. if he looks straight down through the glycerin surface, he will perceive the liquid to be what apparent depth?

Answer 1

By law of refraction we know that image position and object positions are related to each other by following relation

`(\mu_1)/(h_o) = (\mu_2)/(h_i)`

here we know that

`\mu_1 = 1.473`

`h_o = 5 cm`

`\mu_2 = 1`

now by above formula

`(1.473)/(5) = (1)/(h_i)`

`h_i = 3.39 cm`

so apparent depth of the bottom is seen by the observer as h = 3.39 cm