A guitar string is 90 cm long and has a fundamental frequency of 124 Hz. Where should it be pressed, to produce a fundamental frequency of 186 Hz ? A guitar string is 90 cm long and has a fundamental frequency of 124 Hz. Where should it be pressed to produce a fundamental frequency of 186 Hz ? September 17, 2020 Category: Cengage NEET by C.P Singh , Chapter 16 - Wave Motion and Waves on a String , Part 1 , Facebook Messenger WhatsApp Share this:TwitterFacebook Related