A photo sensitive metal is not emitting photo electrons when erradiated. It will do so when threshold is crossed. To cross the threshold we need to increase

Options :
  1. intensity
  2. frequency
  3. wavelenth
  4. none of the above
Answer and Explanation :-

Answer: Option 2


Sorry there is no explanation for this answer. Please help others by posting your response below

How do you rate this queston?  Very Easy  Easy  Average  Above Average  Tough

Previous Question : The photoelectric effect is a phenomenon which can be used to convert

Next Question : The photoelectric effect is described as the ejection of electrons from the surface of a metal when

Click here for online test on Optical Physics


 (Getemail alerts when others member replies)

Remember, remember, this is now, and now, and now. Live it, feel it, cling to it. I want to become acutely aware of all I've taken for granted.
-Sylvia Plath