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The threshold wavelength of a meta...

The threshold wavelength of a metal is 400 nm photo electrons have kinetic energy maximum 1.5 eV. Find the wavelength of incident photon.

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To solve the problem, we will use the photoelectric effect equation and the relationship between energy, wavelength, and the constants involved. ### Step-by-Step Solution: 1. **Understand the Given Data:** - Threshold wavelength (\( \lambda_0 \)) = 400 nm - Maximum kinetic energy of photoelectrons (K.E.) = 1.5 eV ...
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