ECAT & MDCAT XII PHYSICS : Chapter 17 ADVENT OF MODERN PHYSICS (test 1) Leave a Comment / By Afshan JAMAL / July 4, 2026 Welcome to your ECAT & MDCAT XII PHYSICS : Chapter 17 ADVENT OF MODERN PHYSICS (test 1) Planck’s work was connected with: wave nature of matter photoelectric effect structure of atom quantum nature of radiation None None Previous Start Quiz Next Time's up