How much water should be filled in a container $21\ cm$ in height, so that it appears half filled when viewed from the top of the container (given that$\ _{a}\mu_{\omega} = 4/3$)

Question

Dr. Abubacker · Accepted Answer

(c) To see the container half-filled from top, water should be filled up to height $x$ so that bottom of the container should appear to be raised upto height $(21 - x)$
As shown in figure apparent depth $h^{'} = (21 - x)$
Real depth $h = x$
$	herefore\mu = \frac{h}{h^{'}} \Rightarrow \frac{4}{3} = \frac{x}{21 - x} \Rightarrow x = 12\ cm$

Q. How much water should be filled in a container $21\ cm$ in height, so that it appears half filled when viewed from the top of the container (given that$\ _{a}\mu_{\omega} = 4/3$)

Explanation

Reviewed by Dr. Abubacker

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