A plane sound wave passes from medium 1 into medium 2

PHYSICS · Single correct · A Level · Physics · Waves · Waves

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 (1)

\frac{3}{4}

(2)

\frac{4}{5}

(3)

\frac{5}{6}

(4)

\frac{2}{3}