Dual Nature of Radiation and Matter
A worksheet covering key concepts of the dual nature of radiation and matter, including the photoelectric effect, photons, and de Broglie waves. Total: 40 marks.
Section A: One Word Answers
Answer the following questions in one word or a short phrase.
Who discovered X-rays in 1895?
Who first suggested that cathode rays consisted of fast-moving negatively charged particles?
Who experimentally determined the speed and specific charge (e/m) of cathode ray particles?
In 1897, what name did J. J. Thomson give to the fundamental, universal constituents of matter he discovered?
Who performed the pioneering oil-drop experiment to precisely measure the charge of an electron?
Section B: True or False
State whether the following statements are True or False, and provide a brief reason for your answer.