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CGP EDU Academic Team
Published on: August 13, 2026
In photoelectric effect an em-wave is incident on a metal surface and electrons are ejected from the surface. If the work function of the metal is 2.14 eV and stopping potential is 2 V , what is the wavelength of the em-wave? (Given hc 
where h is the Planck's constant and c is the speed of light in vaccum.)
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Verified by ExpertsThe correct answer is:
D
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