Question

2. a medical intrument is used for investigating
and tracking many medical problems, works at
frequencies higher than 20,000 Hz .What type
of sound wave is used by this instrument?​

Answer 1

Answer:

ultrasound equipment

Explanation:

Answer 2

Explanation:

The ultrasound equipment, familiar to us for investigating and tracking many medical problems, works at frequencies higher than 20,000 Hz. We hear different types of sounds around us.