Most people interpret a 9.0 dB increase in sound intensity level as a doubling in loudness. By what factor must the sound intensity be increase to double the loudness?

Most people interpret a 9.0 dB increase in sound intensity level as a

1.	Most people interpret a 9.0 dB increase in sound intensity level as a doubling in loudness. By what factor must the sound intensity be increase to double the loudness?
Answer» `1 m//s` `2 m//s` `3 m//s` `4 m//s` Solution :`f_(B) = f_(1) - f_(2)` or `10 = 1700 ((340)/(340 + nu_(2))) - 1700 ((340)/(340 + nu_(1)))` `= 1700(1 + (nu_(2))/(340))^(-1) - 1700 (1 + (nu_(1))/(340))^(-1)` USING Binomial therefore, we get `10 = 1700(1 - (nu_(2))/(340)) - 1700 (1 - (nu_(1))/(340))` `= (nu_(1) - nu_(2)) ((1700)/(340))` :. `nu_(1) - nu_(2) = 2 m//s`