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If a sound wave has intensity of 200 mw/cm² & there is attenuation of 3dB change, the new intensity will be: O 300 mw/cm² O200 mw/cm² O 25 mw/cm² O. 100 mw/cm² O 50 mw/cm² During scanning soft tissue, if you change sound frequency from 10 MHz to 20 MHz, propagation speed: Will not change O will decrease O Will increase Will become 20 mm/s

If a sound wave has intensity of 200 mw/cm² & there is attenuation of 3dB change, the new intensity will be: O 300 mw/cm² O200 mw/cm² O 25 mw/cm² O. 100 mw/cm² O 50 mw/cm² During scanning soft tissue, if you change sound frequency from 10 MHz to 20 MHz, propagation speed: Will not change O will decrease O Will increase Will become 20 mm/s

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If a sound wave has intensity of 200 mw/cm² & there is attenuation of 3dB change, the new intensity will be: O 300 mw/cm² Ⓒ200 mw/cm² O 25 mw/cm² O.100 mw/cm² Ⓒ 50 mw/cm² During scanning soft tissue, if you change sound frequency from 10 MHz to 20 MHz, propagation speed Will not change Will decrease O Will increase Ⓒ Will become 20 mm/s
Transcribed Image Text:If a sound wave has intensity of 200 mw/cm² & there is attenuation of 3dB change, the new intensity will be: O 300 mw/cm² Ⓒ200 mw/cm² O 25 mw/cm² O.100 mw/cm² Ⓒ 50 mw/cm² During scanning soft tissue, if you change sound frequency from 10 MHz to 20 MHz, propagation speed Will not change Will decrease O Will increase Ⓒ Will become 20 mm/s
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