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For photoelectric emission, tungsten requires light of 2300 A. If light of 1800 A wavelength is incident then emission


  1. Takes place

  2. Don’t take place

  3. May or may not take place

  4. Depends on frequency


Solution

The correct option is A

Takes place


In tungsten, photoemission take place with a light of wavelength 2300 A. As emission of electron is inversely proportional to wavelength, all the wavelengths smaller then 2300 A will cause emission of electrons.

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