Dual Nature of Radiation and Matter
This worksheet covers the fundamental concepts of the dual nature of radiation and matter, including the photoelectric effect and de Broglie's hypothesis. Total: 40 marks.
Section A: Fill in the Blanks [20 Marks]
Complete the following statements with the correct word or phrase.
The discovery of X-rays in 1895 was made by ________.
J. J. Thomson confirmed that cathode rays consisted of streams of fast-moving ________ charged particles.
The minimum energy required by an electron to escape from a metal surface is called the ________ of the metal.
The work function is generally denoted by the symbol
The process of electron emission from a metal surface by supplying thermal energy is called ________ emission.
Section B: Multiple Choice Questions [20 Marks]
Choose the single correct answer for each question.