ICSE Class 7 Answered
defin ultrasonic sound
Asked by lijij6081 | 21 Mar, 2021, 08:33: AM
Expert Answer
Ultrasonic sound:
Sounds having frequency higher than 20,000 Hz are known as ultrasonic sounds. Some animals like bats, dogs and dolphins can hear ultrasonic sounds.
Answered by Ramandeep | 21 Mar, 2021, 23:03: PM
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