Question

What is the real depth of a swimming pool which appears to be 10m deep when viewed directly from above its surface? ( refractive index of water = ⁴/³).

Answer 1

ANSWER

7.5

Explanation:

10/4/3

=10*3/4

=2.5*3

=7.5

Answer 2

Answer:

n= real depth /apparent depth

n x apparent depth=real depth

4/3 x 10m =real depth  

13.33m =real depth

Explanation: