A pile high, driven into the bottom of a lake, is above the water. Determine the…

PHYSICS · Numerical · CBSE · Physics · Light — Reflection and Refraction · Light — Reflection and Refraction

Problem

A pile

4\,\text{m}

high, driven into the bottom of a lake, is

1\,\text{m}

above the water. Determine the length of the shadow of the pile on the bottom of the lake if the Sun's rays make an angle of

45^\circ

with the water surface. The refractive index of water is

\frac43