The energy of X-ray photon of wavelength 1.65 Å is
`(h=6.6 xx 10^(-34)J-sec,c=3xx10^(8)ms^(-1),1eV=1.6xx10^(-19)J)`

The energy of an X-ray photon of wavelength 1.65Å is (h=6.6xx10^(-34)Js,c=3xx10^(4)ms^(-1),ev=1.6xx10^(-19)J)

The energy of a photon of wavelength 4000 Å is (use h=6.66xx10^(-34) J-s)

The wavelength of photon having energy of 35 keV is …….. (h=6.625xx10^(-34)J-s, c=3xx10^(8)ms^(-1), 1eV=1.6xx10^(-19)J) .

Wavelength of photon having 35 keV energy will be…….. (h=6.625xx10^(-34))J-s,c=3xx10^(8)ms^(-1),1eV=1.6xx10^(-19)J) .

The work function of a certain metal is 3.31 xx 10^(-19) j then, the maximum kinetic energy of photoelectrons emitted by incident radiation of wavelength 5000 Å IS(GIVEN,h= 6.62 XX 10^(-34)J_(-s),c=3 xx 10^(8)ms^(-1),e=1.6 xx 10^(-19)C)

Calculate the energy of the photon of wave-length 4500A. Given h= 6.6xx10^(-34) J sec.