1. measuring the ocean depth e FR 4 trent Image credit https://www.teacheo.com/ 2. sound is heard around corners of a building Radio Image Credit: https://www.ck12.org/ 3. a sound heard inside a theater or an auditorium Image credit: https://slideplayer.com/ 4. listener on top of the building can hear clearly than on the ground Image credit: http://www.hk-phy.org/ (Modified) ground
(plsss answer this I really need it ipapass na tohh bukas) ​