Question

What is the SI unit of work function? Best answer will be marked brainliest.​

Answer 1

Answer:

Work function is expressed in eV, and 1eV=1. 6×10−19 J. By definition, Electronvolt (eV) is the amount of energy gained (or lost) by the charge of a single electron moved across an electric potential difference of one volt.

Explanation:

Answer 2

Work function: It is the minimum amount if energy required to cause photo-emission of electrons from a metal surface when light is incident on it.

• The work function is also known as the threshold energy.
• The energy of the incident light is equal to the sum of the work function and the photoelectron of kinetic energy.
• Therefore, the Total energy of photon = Work function + Maximum kinetic energy of the electron.
• The energy of a photon is given by the equation: E = hv, where V is the frequency of incident light and h is the Planck's constant.

Hence the work function is a measure of energy. and the SI unit is Joule(J).