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- Taraf Intensitas
Pada jarak r1 = r, TI1
Pada jarak r2 = 4r, TI2
TI1 - TI2 = ___?
TI2 = TI1 - 20 log (r2/r1)
TI2 = TI1 - 20 log 4
TI2 = TI1 - 40 log 2
TI1 - TI2 = 40 log 2
∆TI = 40 (0,3010)
∆TI = 12,0 4 dB ← jwb