Let K1 and K2 be the maximum kinetic energies of photo-electrons emitted when two monochromatic beams of wavelength $\lambda$1 and $\lambda$2, respectively are incident on a metallic surface. If $\lambda$1 = 3$\lambda$2 then :

Question

Let K₁ and K₂ be the maximum kinetic energies of photo-electrons emitted when two monochromatic beams of wavelength $\lambda$₁ and $\lambda$₂, respectively are incident on a metallic surface. If $\lambda$₁ = 3$\lambda$₂ then :

${K_1} > {{{K_2}} \over 3}$

${K_1} < {{{K_2}} \over 3}$

${K_1} = {{{K_2}} \over 3}$

${K_2} = {{{K_1}} \over 3}$

Solution

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