If the two metals A and B are exposed to radiation of wavelength 350 nm. The work functions of metals A and B are 4.8 eV and 2.2 eV. Then choose the correct option
(1) Metal B will not emit photo-electrons
(2) Both metals A and B will emit photo-electrons
(3) Both metals A and B will not emit photoelectrons
(4) Metal A will not emit photo-electrons
