Wavelength Speed of the waveFrequency of the wave As mentioned above all the quantities are. The wavelength to frequency formula is given by. The Work Function Of Cs Is 2 14ev Find A Threshold Frequency For Cs B Wavelength Of Incident Youtube H c λ h c λ ω 0 2 ω 0. . Two of the easiest points to find are the crest the high point of a wave or. How to Find the Work Function of a Material Given Experimental Data from the Photoelectric Effect Step 1. We have Φ h ν o hcλ o. F f f 075 wavess So the frequency of the wave is 075 waves. This chemistry video tutorial explains how the photoelectric effect works. The wave travels a distance of 3m in 4s. λ λ 2. Remember that the work function of a metal is the energy required to make an electron free from the surface. λ 03 m. Recall that the formula for work function given incident photon wavelength is 𝑊 ℎ 𝑐 𝜆 𝐸. When you substitute this into the e...