## britttanyannne Group Title an oboe plays A (440 Hz) at 20degrees Celsius. at the same time, an identical oboe plays the same note at 0degrees, and beats are heard. what is the beat frequency ? 2 years ago 2 years ago

1. JamesJ

Nice question. $v = \lambda f$ f is the same for the two notes. So what's different?

2. britttanyannne

would $\lambda$ be whats different ?

3. JamesJ

yes, it must be. Now why? Because v is different. Why? Because the speed of sound depends on the temperature of the air.