In a photoelectric effect experiment the threshold wavelength of light is 380 nm. If the wavelength of incident light is 260 nm, the maximum kinetic energy of emitted electrons will be :
Given E (in eV) = 1237/λ(in nm)
(1) 3.0 eV (2) 1.5 eV (3) 4.5 eV (4) 15.1 eV
