11) When sodium metal is subjected to violet light, it causes the photoelectric effect. However, red light does not affect
the sodium. Explain this phenomena.

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29-11-2021
Chemistry

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11) When sodium metal is subjected to violet light, it causes the photoelectric effect. However, red light does not affect
the sodium. Explain this phenomena.

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pstnonsonjoku pstnonsonjoku · Answer 1 · 2021-12-09T10:48:28+01:00

The maximum wavelength for which photoelectric effect occurs in sodium is 400 nm.

Photoelectric effect has to do with the ejection of electrons from a clean metal surface when energy is supplied in the form of light. All wavelengths of light are not capable of achieving photoelectric effect.

There exists a maximum wavelength that the incident rays must posses in order for photoelectric effect to occur. The maximum wavelength for which photoelectric effect occurs in sodium is 400 nm.

The wavelength of red light is around 625 - 740 nm which is far longer than the wavelength of violet light which is around 380 - 425 nm. Hence, when sodium metal is subjected to violet light, it causes the photoelectric effect but red light does not affect the sodium metal.

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11) When sodium metal is subjected to violet light, it causes the photoelectric effect. However, red light does not affect the sodium. Explain this phenomena.

Respuesta :

Otras preguntas

11) When sodium metal is subjected to violet light, it causes the photoelectric effect. However, red light does not affect
the sodium. Explain this phenomena.