The maximum wavelength of radiation that can produce photoelectric effect in certain metal is 200 nm. What is the maximum kinetic energy (in electron-volt) acquired by the electron due to radiation of wavelength 100 nm?

Question

The maximum wavelength of radiation that can produce photoelectric effect in certain metal is 200 nm. What is the maximum kinetic energy (in electron-volt) acquired by the electron due to radiation of wavelength 100 nm?,

MARKS App · Accepted Answer

Here, λ 0 = 200 n m ; λ = 100 n m ; maximum KE = h c λ e - h c λ 0 e = h c e 1 λ - 1 λ 0 = 1240 1 100 - 1 200 = 6.2 e V

Search any question & find its solution

Looking for more such questions to practice?