Question

on which factor work function of metal depends

Answer 1

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I know this much only about your question.....................

Light above the threshold frequency, even if it's not very intense, will always cause electrons to be emitted. The explanation for the photoelectric effect goes like this: it takes a certain energy to eject an electron from a metal surface. This energy is known as the work function (W), which depends on the metal.

Answer 2

Answer:

The work function of metal depends upon:-

• Purity of the metal
• The nature of the metal surface
• Type of metal

Explanation:

• When light is incident on a metal surface, the work function is the bare minimum energy needed to cause photoemission of electrons from the metal surface.
• The threshold energy is another name for the work function. The work function and the photoelectron kinetic energy are added together to form the energy of the incident light.
• Therefore, the work function plus the electron's maximal kinetic energy equals the total energy of a photon.
• The equation E = h v gives the energy of a photon. Where h is Planck's constant and v is the frequency of the incident light.
• The type of metal utilized is the only factor that affects how the work is done. Depending on how the work function varies, different metals have electrons present at various energy levels.

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