AP EAPCET 26 May 2025 Shift 1 Paper

Section: Chemistry

Question : 121 of 160

Marks: +1, -0

The work function of Cu is 7.68×10−19J. If photons of wavelength 221 nm are made to strike the surface of the metal, the kinetic energy (in J ) of the ejected electrons will be (h=6.63×10−34‌Js)

[AP EAPCET 26 May 2025 S1]

‌2.64×10−18
‌1.32×10−19
‌2.64×10−19
‌6.60×10−19

Validate

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