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In a photoelectric effect experiment, the maximum kinetic energy of the ejected photoelectrons is measured for various wavelengths of the incident light. Diagram shows a graph of this maximum kinetic energy Kmax as a function of the wavelength λ of the light falling on the surface of the metal. Which of the following statement/s is/are correct?
  • a)
    Threshold frequency for the metal is 1.2 × 1015 Hz
  • b)
    Work function of the metal is 4.968 eV
  • c)
    Maximum kinetic energy of photoelectrons corresponding to light of wavelength 100 nm1 is nearly 7.4 eV
  • d)
    Photoelectric effect takes place with red light
Correct answer is option 'A,B,C'. Can you explain this answer?
Most Upvoted Answer
In a photoelectric effect experiment, the maximum kinetic energy of t...
Cut-off wavelength, λ0 = 250nm
Threshold frequency,
Work function of the metal,
Maximum kinetic energy of photoelectrons corresponding to light of wavelength 100 nm is
= 7.432 eV ≈ 7.4 eV
Photoelectric effect takes place only for light of wavelength less than 250 nm, whereas
λred ≈ 700 nm
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In a photoelectric effect experiment, the maximum kinetic energy of the ejected photoelectrons is measured for various wavelengths of the incident light. Diagram shows a graph of this maximum kinetic energy Kmax as a function of the wavelength λ of the light falling on the surface of the metal. Which of the following statement/s is/are correct?a)Threshold frequency for the metal is 1.2 × 1015 Hzb)Work function of the metal is 4.968 eVc)Maximum kinetic energy of photoelectrons corresponding to light of wavelength 100 nm1 is nearly 7.4 eVd)Photoelectric effect takes place with red lightCorrect answer is option 'A,B,C'. Can you explain this answer?
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In a photoelectric effect experiment, the maximum kinetic energy of the ejected photoelectrons is measured for various wavelengths of the incident light. Diagram shows a graph of this maximum kinetic energy Kmax as a function of the wavelength λ of the light falling on the surface of the metal. Which of the following statement/s is/are correct?a)Threshold frequency for the metal is 1.2 × 1015 Hzb)Work function of the metal is 4.968 eVc)Maximum kinetic energy of photoelectrons corresponding to light of wavelength 100 nm1 is nearly 7.4 eVd)Photoelectric effect takes place with red lightCorrect answer is option 'A,B,C'. 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 In a photoelectric effect experiment, the maximum kinetic energy of the ejected photoelectrons is measured for various wavelengths of the incident light. Diagram shows a graph of this maximum kinetic energy Kmax as a function of the wavelength λ of the light falling on the surface of the metal. Which of the following statement/s is/are correct?a)Threshold frequency for the metal is 1.2 × 1015 Hzb)Work function of the metal is 4.968 eVc)Maximum kinetic energy of photoelectrons corresponding to light of wavelength 100 nm1 is nearly 7.4 eVd)Photoelectric effect takes place with red lightCorrect answer is option 'A,B,C'. Can you explain this answer? covers all topics & solutions for JEE 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for In a photoelectric effect experiment, the maximum kinetic energy of the ejected photoelectrons is measured for various wavelengths of the incident light. Diagram shows a graph of this maximum kinetic energy Kmax as a function of the wavelength λ of the light falling on the surface of the metal. Which of the following statement/s is/are correct?a)Threshold frequency for the metal is 1.2 × 1015 Hzb)Work function of the metal is 4.968 eVc)Maximum kinetic energy of photoelectrons corresponding to light of wavelength 100 nm1 is nearly 7.4 eVd)Photoelectric effect takes place with red lightCorrect answer is option 'A,B,C'. Can you explain this answer?.
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