Asked by Ustine Mwaba

What is the wavelength given frequency 7 Hz and pi to be 22/7?
Answered by drwls
Are you talking about sound waves? You need the speed of wave propagation to answer the question. For sound in air, it is about 340 m/s.

Wavelength = (Wave speed)/(Frequency)

You do not need to make approximations for pi to do the calculation.
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