Yavuz A.2019-08-012019-08-0120150031-9120https://dx.doi.org/10.1088/0031-9120/50/3/281https://hdl.handle.net/11480/1927This study presents a revised version of an old experiment available in many textbooks for measuring the speed of sound in air. A signal-generator application in a smartphone is used to produce the desired sound frequency. Nodes of sound waves in a glass pipe, of which one end is immersed in water, are more easily detected, so results can be obtained more quickly than from traditional acoustic experiments using tuning forks. © 2015 IOP Publishing Ltd.eninfo:eu-repo/semantics/closedAccessArticle50328128410.1088/0031-9120/50/3/2812-s2.0-84928747585Q2