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\({K}_{1}\) and \({K}_{2}\) be the maximum kinetic energies of photoelectrons emitted from a surface of a given material…

Q1

\({K}_{1}\) and \({K}_{2}\) be the maximum kinetic energies of photoelectrons emitted from a surface of a given material for the light of wavelength \({\lambda }_{1}\) and \({\lambda }_{2}\), respectively. If \({\lambda }_{1}=2{\lambda }_{2}\) then the work function of material is given by :

[JEE Main 2026, 8 Apr (Shift 2)]

a

\({K}_{2}+2{K}_{1}\)

b

\(2{K}_{2}-{K}_{1}\)

c

\({K}_{1}-2{K}_{2}\)

d

\({K}_{2}-2{K}_{1}\)

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