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The threshold wavelength of the tungsten is 2300 Å. If ultraviolet light of wavelength 1800 Å is incident on it, then the maximum kinetic energy of photoelectrons would be about –
  • a)
    1.49 eV
  • b)
    2.2 eV
  • c)
    3.0 eV
  • d)
    5.0 eV
Correct answer is option 'A'. Can you explain this answer?
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The threshold wavelength of the tungsten is 2300 Å. If ultraviol...
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The threshold wavelength of the tungsten is 2300 Å. If ultraviol...
Hc(1/2300-1/1800)
12400Aev/A*100(1/23-1/18)
124ev(5/23*18)=(620/414)ev
=1.49ev. ans.
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The threshold wavelength of the tungsten is 2300 Å. If ultraviolet light of wavelength 1800 Å is incident on it, then the maximum kinetic energy of photoelectrons would be about –a)1.49 eVb)2.2 eVc)3.0 eVd)5.0 eVCorrect answer is option 'A'. Can you explain this answer?
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The threshold wavelength of the tungsten is 2300 Å. If ultraviolet light of wavelength 1800 Å is incident on it, then the maximum kinetic energy of photoelectrons would be about –a)1.49 eVb)2.2 eVc)3.0 eVd)5.0 eVCorrect answer is option 'A'. Can you explain this answer? for JEE 2024 is part of JEE preparation. The Question and answers have been prepared according to the JEE exam syllabus. Information about The threshold wavelength of the tungsten is 2300 Å. If ultraviolet light of wavelength 1800 Å is incident on it, then the maximum kinetic energy of photoelectrons would be about –a)1.49 eVb)2.2 eVc)3.0 eVd)5.0 eVCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for JEE 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The threshold wavelength of the tungsten is 2300 Å. If ultraviolet light of wavelength 1800 Å is incident on it, then the maximum kinetic energy of photoelectrons would be about –a)1.49 eVb)2.2 eVc)3.0 eVd)5.0 eVCorrect answer is option 'A'. Can you explain this answer?.
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