Question

Calculate the apparent depth of a black
point lying below a cubical and
transparent glass slab of side 4
centimeter. Where refractive-index of
glass is 1.6.​

Answer 1

Answer:

0.4

Explanation:

n=(real depth)/(Apparent depth)

1.6=4/a.d

a.d=1.6/4=0.4

Answer 2

$r'=2.5\ cm$

Explanation:

Given:

real depth of the point, $r=4\ cm=0.04\ m$

refractive index of the glass, $n=1.6$

We know that:

$n=\frac{r}{r'}$

where:

$r'=$ apparent depth

$1.6=\frac{4}{r'}$

$r'=2.5\ cm$

#learnmore

TOPIC: refractive index

https://brainly.in/question/3699838