試題詳解

複選題
10. Which of the following experimental observations that challenged classical physics around 1900?【複選題】 
(A) Blackbody radiation.
(B) Electromagnetism and the origin of magnetic fields, which did transform from one coordinate system to another.
(C) Line spectra of hydrogen and other atoms.
(D) The photoelectric effect.
(E) Compton scattering.