Light with a wavelength of 704 nm is incident on a metal, resulting in electrons with speeds up to 0.0015c being ejected from its surface. Determine the threshold wavelength (in nm) for the metal. Answer in nm.
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Step 1
We can rewrite this equation in terms of wavelength using the relationship between frequency and wavelength: f = c/λ where c is the speed of light. Substituting this into the first equation, we get: KE = hc/λ - Φ We know that the maximum speed of the ejected Show more…
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