In a photoelectric experiment, kinetic energy of photoelectrons was plotted aganist the frequency of incident radiation (v), as the shown in figure. Which of the following statements is correct?

In a photoelectric experiment, kinetic energy of photoelectrons was pl

1.	In a photoelectric experiment, kinetic energy of photoelectrons was plotted aganist the frequency of incident radiation (v), as the shown in figure. Which of the following statements is correct?
Answer» The threshold frequency is `v_(1)` The SLOPE of this line is equal to PLANK's CONSTANT. As the frequency of incident radiation increase frequency, kinetic energy of photoelectrons DECREASES It is impossible to obtain such a graph. Answer :B