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How to set up equipment to find the speed of sound?
Attach a signal generator to a speaker to generate set frequencies
Set up oscilloscope attached to two microphones so waves are shown as separate for each
Start with microphones next to each other then slowly move apart until the waves are aligned on the speaker but one wavelength apart
How to find wavelength
Measure the distance between the two microphones using a ruler
How to find wavespeed?
Wave speed= frequency x wavelength
What is the speed of sound in air?
330m/s