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Verified answer
BUNYI• I dan TI
Ia → TIa
Ib → TIb
jika Ia > Ib,
∆TI = 20 db → Ia : Ib = ___?
TIa = 10 log (Ia/Io)
TIb = 10 log (Ib/Io)
—————————————— -
∆TI = 10 log [(Ia/Io) / (Ib/Io)]
∆TI = 10 log (Ia/Ib)
20 = 10 log (Ia/Ib)
2 = log (Ia/Ib)
Ia/Ib = 10²
Ia : Ib = 100 : 1 ← jwb
perbandingan intensitas dari dua peluit tersebut adalah 100 : 1.