A biology student carried out four photoelectric experiments using four different metals I, II, III, and...
A student studying the photoelectric effect for two different metals records the following information. (i) the stopping potential for photoelectrons released from metal 1 is 1.24 V larger than that for metal 2 (ii) the threshold frequency for metal 1 is 50.0% smaller than that for metal 2. Determine the work function for each metal. ϕ1 = ϕ2 =
Quantum Physics - Photoelectric Effect 1 Light Light2 Photo- electrons KEL KEN-W Photoelectric Effect Lenard found that light has to be above a certain frequency in order to observe photoelectrons The Planck constant is 6.626x10^-34 J s. The calcium metal has a work function WO = 2.71 eV, 1eV = 1.6x10^-19). (a) What is the Cutoff frequency for the calcium metal? Write the result in terms of 1014Hz. Keep 3 decimal places. Enter a number x1024Hz Submit (5 attempts remaining)...