The energy required to remove an electron from the surface of sodium metal is 2.3 eV. What is th

step 1 Hello, good evening student. So in this question, we are given the energy required to remove an

The energy required to remove an electron from the surface...

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Key Concepts

Relationship Between Photon Energy and Wavelength

The energy of a photon is directly related to its frequency and inversely related to its wavelength through the equation E = hc/?, where E is the energy of the photon, h is Planck’s constant, c is the speed of light, and ? is the wavelength. This equation is crucial in determining the threshold wavelength required to obtain a photon energy that equals or exceeds the work function of a material to induce electron emission.

Work Function

The work function is the minimum amount of energy required to remove an electron from the surface of a material. It is a characteristic property of each material and represents the barrier that an electron must overcome to be liberated from the atomic lattice. In the context of the photoelectric effect, if the energy of an incident photon is less than the work function, no electron emission occurs.

Photoelectric Effect

The photoelectric effect is a phenomenon in which electrons are emitted from a material as a result of absorbing energy from incident electromagnetic radiation. This effect provided early evidence for the particle nature of light and led to the development of quantum mechanics. It involves the absorption of a photon by an electron, imparting energy that can overcome the binding forces within the material, allowing the electron to be ejected.

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