# Describe the composition in this photo and how it is used effectively. *Your answer

Describe the composition in this photo and how it is used effectively. *

$Describe the composition in this photo and how it is used effectively. * Your answer$

## This Post Has 2 Comments

1. fespinoza019 says:

2. revlonknox6 says:

The equation for the Kinetic Energy, $KE_e$, of the photo-emitted electrons is given as follows;

$KE_e = h\cdot f- BE$

Please find attached the required plot of the kinetic energy versus the frequency

Explanation:

The equation for the Kinetic Energy, $KE_e$, of the photo-emitted electrons is given as follows;

$KE_e = h\cdot f- BE$

Where:

h = Planck's constant = 6.63×10⁻³⁴ J·s

f = Frequency

BE = Binding Energy = 2.71 eV  for Calcium metal

f₀ = Threshold frequency for the material

The ionization energy is the energy required to free an electron from an isolated atom

$Ultraviolet photoelectron spectroscopy (UPS) is an important analytical tool used to characterize th$