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Is photoelectric effect possible with visible light?

Posted on August 16, 2022 by Author

Is photoelectric effect possible with visible light?

When visible light, X rays, gamma rays, or other forms of electromagnetic radiation are shined on certain kinds of matter, electrons are ejected. That phenomenon is known as the photoelectric effect.

What type of metal can show photoelectric effect?

– We found that: Li, Na, K and Mg are having lower values than the incident energy value. So, these metals will show photoelectric effect.

Why does the photoelectric effect only show metal?

In order to knock an electron off of a metal, a wave of light has to have a frequency high enough to provide the energy needed to free the electron from its bonds. Each metal holds onto electrons with different strengths so each metal requires a different amount of energy to free an electron.

Does the photoelectric effect only work on metals?

Only a metal donates its electrons for stability. Thus it means that since only metals can donate electrons on excitation by a photon of light, hence only a metal can participate in photoelectric effect.

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When high frequency visible light shines on a metal the metal may?

When light shines on a metal, electrons can be ejected from the surface of the metal in a phenomenon known as the photoelectric effect. This process is also often referred to as photoemission, and the electrons that are ejected from the metal are called photoelectrons.

Which of the following metals show photoelectric effect when light of 300nm?

Metal Li
The number of metals which will show the photoelectric effect when the light of 300 nm wavelength falls on the metal is: Metal. Li.

Why are alkali metals photosensitive even to visible light?

alkali metals said to be most suitable for the photoelectric effect because the alkali metal have more and more tendency of loosing electrons and hence makes it easier for the photon to eject it out from the atom with the consumption of less energy.

Can Iron metal Exhibit photoelectric effect?

Any metal has a particular minimum energy(called Work Function) needed for ejection of electrons. Copper and Iron have higher energy requirement(unlike Caesium or Potassium) and are therefore unable to show this effect.

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How photoelectric effect explain particle nature of light?

The photoelectric effect supports a particle theory of light in that it behaves like an elastic collision (one that conserves mechanical energy) between two particles, the photon of light and the electron of the metal. However much hν exceeds the binding energy will be the kinetic energy KE of the ejected electron.

Can non metals show photoelectric effect?

Explanation: Photoelectric effect is only for first group elements even for not all elements.So it doesn’t shown by non-metals also.

Does metal refract light?

For higher frequencies (usually far above the visible light) metal is transparent and refraction does occur.

What happens when light shines on metal?

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