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- Energi
A = 2 m × 3 m = 6 m²
P = 0,6 W
I₀ = 10⁻¹² W/m²
TI = __ ?
Intensitas bunyi
I = P / A
I = (0,6 W) / (6 m²)
I = 0,1 W/m²
Taraf intensitas
TI = 10 log I/I₀
TI = 10 log (0,1 / 10⁻¹²)
TI = 10 log 10¹¹
TI = 110 dB ← jwb