Physics

Problem

A plane sound wave passes from medium 1 into medium 2. The speed of sound in medium 1 is

200 \text{ m/s}

and in medium 2 is

100 \text{ m/s}

. The ratio of amplitude of the transmitted wave to that of incident wave is a.

\frac{3}{4}

\frac{4}{5}

\frac{5}{6}

\frac{2}{3}