Final answer:
To estimate the short circuit current delivered by a 10 cm x 10 cm photocell illuminated by monochromatic light of 400 nm wavelength with a power density of 1000 W/m², calculate the number of photons entering the photocell per second.
Step-by-step explanation:
To estimate the short circuit current delivered by a 10 cm x 10 cm photocell illuminated by monochromatic light of 400 nm wavelength with a power density of 1000 W/m², we need to calculate the number of photons entering the photocell per second.
The energy of each photon can be calculated using the formula E = nhc/λ, where E is the energy, h is Planck's constant, c is the speed of light, and λ is the wavelength of the light.
Once we have the energy of each photon, we can calculate the number of photons entering the photocell per second by dividing the power density by the energy of each photon.
This will give us the short circuit current delivered by the photocell.