24.3c Ex2 ON14 P43 Q11 Reflected Intensity Ratio | A2 Ultrasound Waves | CAIE A Level Physics

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  • Опубліковано 8 лис 2024

КОМЕНТАРІ • 10

  • @fariahaslam9095
    @fariahaslam9095 3 роки тому +6

    Thank you. Watching this one day before exams. These are literally life savers

  • @zia692
    @zia692 Рік тому

    in reflected intensity why do we not also add the intendity reflected at air muscle bounary. which should be about 0.54I?

  • @kiransahotoy
    @kiransahotoy 3 роки тому +1

    May I know what are the units for the 0.46 answer? (dB/m)? Where you can find this attenuation value at 8:38 minutes.

    • @ETphysics
      @ETphysics  3 роки тому +1

      It is a fraction/ratio of intensities (like dB/dB), so there are no units for the 0.46 :)

  • @haiffaalkureidi6806
    @haiffaalkureidi6806 2 роки тому

    Why do we use different frequencies of ultrasound when we take pictures of the human body?

  • @manahils.6030
    @manahils.6030 3 роки тому +2

    i have a problem calculating this. can u tell me how to calculate this with my calculator i mean what is e in the calculater and how can i take answer. please help

    • @ETphysics
      @ETphysics  3 роки тому +1

      What model is your calculator? Is there a button with 'e' or 'EXP' on it?

  • @savannah776
    @savannah776 2 роки тому +5

    part iii not that clear tbh 😔