Question

11. The work function of a metal equals to 3 x 10-9. Calculate the number of photons of light of
wavelength 26.52 cm?​

Answer 1

Answer:

answered Dec 6, 2018 by Rajnish (7.2k points) Here you haven't specified that work function of metal is in joule or ev. So to solve it we are giving you the direction: Calculate the energy of photon E = hc/λ where h (planks constant) = 6.63 x 10-34 c = 3x 108 m/s λ = wavelength in metre of photon = 26.52 x 10-9 m Now divide the work function (in joule) by the energy of photon you will get the no. of photon.Read more on Sarthaks.com - https://www.sarthaks.com/218541/function-metal-equals-calculate-number-photons-light-wavelength-whose-total-energy-equals