Sound waves with frequency higher than are termed ultrasound.

PHYSICS · Single correct · CBSE · Physics · Sound · Sound

Problem

Sound waves with frequency higher than ____ are termed ultrasound. (a)

2\,\text{kHz}

(b)

20\,\text{kHz}

(c)

20\,\text{Hz}

(d)

200\,\text{kHz}