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QJEEM24Phb67f: JEE Main 2024 Physics - Class 12 JEEM24Phb67f Solution: The work function of a substance is 3.0   eV . The longest …

The work function of a substance is 3.0 eV. The longest wavelength of light that can cause the emission of photoelectrons from this substance is approximately;

Multiple Choice Options

  • A 215 nm
  • B 400 nm
  • C 414 nm
  • D 200 nm

Step-by-Step Verified Solution

 For P.E.E. : λ≤hcWeλ≤1240 nm−eV3eVλ≤413.33 nmλmax≈414 nm for P.E.E. 

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