Light of wavelength `5,500 overset @A` falls on a sensitive plate with work function 1.7 eV .Find stopping potential.

Light of wavelength 5000 overset @A falls on a photosensitive plate with work function 1.9 eV. Find energy of photon in eV(electron Volt)

Light of wavelength 5000 overset @A falls on a photosensitive plate with work function 1.9 eV. FInd maximum kinetic energy of photoelectron and stopping potential.

light of wavelength 2200 overset@A (angstorm) falls on photosensitive plate with work function 4.1 eV. Find energy of photon in eV (electron Volt) Find maximum kinetic energy of photoelectron and stopping potetial.