At the threshold frequency, stopping potential is `"__________"`.

Establish Einstein's photoelectric equation. Discuss how it gives the concept of threshold frequency and stopping potential.

At an incident radiation frequency of v_(1) , which is greater than the threshold frequency, the stopping potential for a certain metal is V_(1) . At frequency 2v_(1) , the stopping potential is 3V_(1) . If the stopping potential at frequency 4v_(1) is nV_(1) then n is

Define the term threshold frequency and stopping potential in relation to phenomenon of photoelectric effect. How is the photoelectric current affected on increasing the frequency?

Define the term threshold frequency and stopping potential in relation to phenomenon of photoelectric effect. How is the photoelectric current affected on increasing the intensity of incident radiation and why?

Explain Hallwach's and Lenard's observation on photoelectric effect. Define : a.work function b. Threshold frequency c. Stopping potential