d*sina=k*L L=d*sina/k=5*10^-6*0,5/5=0,5*10^-6 м C=v*L v=C/L=3*10^8/0,5*10^-6=6*10^14 Гц
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d*sina=k*L L=d*sina/k=5*10^-6*0,5/5=0,5*10^-6 м C=v*L v=C/L=3*10^8/0,5*10^-6=6*10^14 Гц