Due to point isotropic sound source, the intensity at a point is observed as 40 dB. The density of air is `rho=((15)/(11))(kg)/(m^3)` and velocity of sound in air is `330(m)/(s)`. Based on this information answer the following questions.
Q. The ratio of displacement amplitude of wave at observation point to wavelength of sound waves is
A. `3.22xx10^-6`
B. `3.22xx10^-12`
C. `3.22xx10^-9`
D. `1.07xx10^-10`