(c) Given that the following kinetic energies were observed for photoejected electrons irradiated E radiation of the wavelengths noted. (ii) € A (nm) Ek (eV) 320 1.17 330 345 360 1.05 0.885 0.735 385 0.511 Calculate the value of the work function. Calculate the Planck's constant. Describe the experimental features/characteristics of the photoelectric effect. (3)
Electronic Transitions and Spectroscopy
The term “electronic” connotes electron, and the term “transition” implies transformation. In a molecule, the electrons move from a lower to a higher energy state due to excitation. The two energy states, the ground state and the excited state are the lowest and the highest energy states, respectively. An energy change is observed with this transition, which depicts the various data related to the molecule.
Photoelectron Spectroscopy
Photoelectron spectroscopy (PES) is a part of experimental chemistry. It is a technique used in laboratories that involves projecting intense beams of radiation on a sample element. In response, the element ejects electrons for which the relative energies are measured.
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