Question

suppose your are inside the water in a swimming pool near an edge. A friend is standing on the edge. Do you find your friend taller or shorter than his usual height? Why?​

Answer 1

Explanation:

When I am inside water in a swimming pool my friend standing on the edge will appear taller shorter than his usual height due to following reason:

As light travelling from denser medium to rarer medium it bends away from the normal due to refraction and vice versa

And let x be the actual height of my friend, then,

Refractive index of water

refractive index of air

=

Apparent height of my friend

Actual height of my friend

⟹

3

4

1

=

Apparent height of my friend

x

⟹Apparent height of my friend=1.33×actual height of my friend

Answer 2

photosynthesis is a process in which plants make their own food with the help of water and sunlight