on a T=10^-3 s
yalta9ito microphone alasawt almonba3it min mokabir ,nozihou almicrophone m hata nahsoulou min monhanayayni motawafi9ayn fi tawer 3ind ofssoul x1 =4.5 cm lilmicrophone wa nozihou intila9an min almicrophone m fa nolahidou ana almonhana almo3ayan 3la madkhel y(b) yanzahou 3ani almonhana almo3ayan 3la almadkhel ya wa 3ina alofsoul x2=38.5 cm yousbihani min jadid motawafi9ani fi tawer
hadid tawer almawja namda ???
DSL (pr l arabe )
PS: cet exo est tire de dima dima PC exo n)19 page 43
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