Question

Sout these hequeinces into those that are
sound and those that are at ultrasound?
(0) 4500 Hz
(lo ooo Hz
(W) 30 000 Hz
(iv) 30 Hz
(v) 1500 Hz​

Answer 1

Explanation:

Ultrasound is acoustic (sound) energy in the form of waves having a frequency above the human hearing range. The highest frequency that the human ear can detect is approximately 20 thousand cycles per second (20,000 Hz). This is where the sonic range ends, and where the ultrasonic range begins. Ultrasound is used in electronic, navigational, industrial, and security applications. It is also used in medicine to view internal organs of the body.

The generally accepted standard range of audible frequencies is 20 Hz to 20,000 Hz, although the range of frequencies individuals hear is greatly influenced by environmental factors.

Answer 2

Answer:

sounds = 4500 Hz, 30 Hz, 1500Hz

ultrasound = 30000 Hz