MENU
Get premium membership and access revision papers with marking schemes, video lessons and live classes.
OR
Processing. Please wait.

# Form 4 Physics Photoelectric Effect Questions and Answers

(i) State two factors that determine the speed of the photoelectrons emitted from a metal surface.(ii) The energy of a photon of light is 2.21
eV. (Electronic charge is 1.6 x10^-19C and planks constant h is 6.63 x 10^-34 Js).
(I) Express this energy in joules.
(II) Determine the frequency of the light that produces the photon.

(0m 0s)
525 Views     SHARE

|