6 ms·
I think you are off about 3-4 order of magnitude. 30kHz is about 1cm in air.
by guywhocodes 6y ago
I think you are off about 3-4 order of magnitude. 30kHz is about 1cm in air.
- willis936 6y agoIn free space: lambda = c / f lambda = 3E8 [m/s] / 10E3 [1/s] = 3E5 [m] You’d be right for acoustic waves, but we’re not talking about those.