Loud speaker voice is increase due to-----:

A ) Spectrum technology

B ) High frequency ✅

C ) High energy

D ) None of these

Related Questions
  1. What is the speed of sound in air?
  2. The frequency of sound in air is measured in--------:
  3. The volume of water expands what percent at freezing?
  4. What is the speed of sound in tissue?
  5. Speed of sound will be maximum in--------:
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