Showing posts with label What is Photoelectric Effect?. Show all posts
Showing posts with label What is Photoelectric Effect?. Show all posts

Thursday, 22 January 2015

Photoelectric Effect a brief description

Photoelectric Effect

“I think I can safely say that nobody understands Quantum Mechanic.” – Richard Feynman.


 What is Photoelectric Effect?
      
         When a ray of light (of finite value of frequency or frequencies) incidence on a photosensitive metal ( Na, K, Cs etc. ) sheet , then electron emanate from the sheet. T phenomena of emission of electron from such a metal sheet is