For a metal of work function 6.6 eV , which of the following wavelengths of incident radiation does not give rise to the photoelectric effect ?
(Take Planck's constant as $6.6\times {10}^{-34}Js$ )

Question

For a metal of work function 6.6 eV , which of the following wavelengths of incident radiation does not give rise to the photoelectric effect ? (Take Planck's constant as $6.6\times {10}^{-34}Js$ )

YESPYQ · Accepted Answer

Correct answer: a) 200 nm. $ϕ=6.6\mathrm{eV}\ \frac{\text{ hc }}{\lambda }=6.6\mathrm{eV}\ {\lambda }_{0}=\frac{12400}{6.6}\ {\lambda }_{0}=1878.7\mathrm{Angstrom}\ =187.87\mathrm{nm}$

For a metal of work function 6.6 eV , which of the following wavelengths of incident radiation does not give rise to the…

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