What is the range of frequencies associated with
(b) Ultrasound?
The ultrasonic sounds have frequencies higher than 20,000 Hertz, which is also not audible for humans.
CBSE Class 10, 12 syllabus 2024-25 out; board restores two-level mathematics rule
CBSE Class 10 board exam 2024 passing criteria, eligibility for compartment; all you need to know
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