An ultrasonic transducer emits sound waves with a period of
PHYSICS · Single correct · A Level · Physics · Waves · Waves
Problem
An ultrasonic transducer emits sound waves with a period of 2.5ms. What is the frequency of these waves, expressed in kilohertz?
(a) 4.0kHz
(b) 400kHz
(c) 0.40kHz
(d) 2.5kHz