Answer:
This is green light
Explanation:
According to the photoelectric effect, the maximum kinetic energy of an photoelectron is given by:
Here, E is the energy of the photon and W is the minimum energy required to remove an electron from the surface of the metal, W is defined as:
The Planck – Einstein relation states that the energy of a photon is equal to its frequency multiplied by the planck constant:
Recall that . Replacing (3) and (2) in (1):
Solving for :
This is green light
Answer: i wish i could help but that’s a lot
Explanation:
V = frequency * wavelength
v = 80 * 4
v = 320m/s