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وارد شوید

Physics for IGCSE & O level - Waves And Sounds (Section 7 - No. 38)

What does the term 'ultrasonic' mean?
Sound waves with a very low frequency
Sound waves with a very high frequency
Sound waves that travel through solids only
Sound waves that are inaudible to humans

توضیح

Ultrasonic refers to sound waves with frequencies above the range of human hearing.

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