Sound waves of frequency fall normally on a perfectly reflecting wall

PHYSICS · Single correct · CBSE · Physics · Waves · Waves

Problem

Sound waves of frequency

600\,\text{Hz}

fall normally on a perfectly reflecting wall. The distance from the wall at which the air particles have maximum amplitude of vibration is given by

v=330\,\text{m/s}

. (1)

13.75\,\text{cm}

(2)

40.25\,\text{cm}

(3)

70.5\,\text{cm}

(4)

60.75\,\text{cm}