A tuning fork vibrates at a frequency of 250Hz. Now temperature rise from 0 C to 20C what is the change in wavelength Share with your friends Share 1 Decoder_2 answered this Dear student,Velocity at 20oC=331293273=342.3m/svelocity=frequency×wavelengthwavelength=342.3250=1.36mRegards 0 View Full Answer