ECAT & MDCAT XI PHYSICS : Chapter 8 WAVES (test 1) Leave a Comment / By Afshan JAMAL / July 4, 2026 Welcome to your ECAT & MDCAT XI PHYSICS : Chapter 8 WAVES (test 1) Mechanical waves: are longitudinal only are transverse only can be both transverse and longitudinal require no medium for propagation None None Previous Start Quiz Next Time's up