3) P1=I^2*3*r P2=I^2/4*r
P1/P2=3/4
4) sinb/sina=n2/n1=0,6/0,5=6/5
6) концентрация-2 скорость- 1
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3) P1=I^2*3*r P2=I^2/4*r
P1/P2=3/4
4) sinb/sina=n2/n1=0,6/0,5=6/5
6) концентрация-2 скорость- 1