1. Photoelectric effect 2015/5/13 Kyujin Shin Seongwook Park

2. Contents (1) What is a photoelectric effect? (2) What was the dilemma in the photoelectric effect? (3) What is Einstein’s assumption? (4) How did it resolve the dilemma? (5) What is a “scattering”? (6) How did Compton prove Einstein’s theory? (7) Any application of the photoelectric effect in real life?

3. (1) What is a photoelectric effect?

4. (2) What was the dilemma in the photoelectric effect? Why increasing the intensity had no effect to the energy of ejected electron??

5. (3) What is Einstein’s assumption?

6. (4) How did it resolve the dilemma

9. (5) What is a “scattering”

11. (6) How did Compton prove Einstein’s theory?

12. (7) Application of the photoelectric effect in real life? - CCD Camera

13. - Photoelectric sensor (7) Application of the photoelectric effect in real life?

14. - Photoelectron spectroscopy (7) Application of the photoelectric effect in real life?

15. Acknowledgement Kyujin Shin : Part (4), (5), and (6) Seongwook Park : Part (1), (2), (3), and (7)

16. References (1) Thomas Engel, Quantum chemistry & Spectroscopy, second edition, page 5-6. (2) Wikipedia, en.wikipedia.org, Search word ‘Photoelectric effect’ and ‘Compton scattering’.

17. Thank you