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Electron, Photon, Photoelectric Effect and X-Rays — Physics STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 SciencePhysicsElectron, Photon, Photoelectric Effect and X-Rays1 Mark
MCQ
The work function for tungsten and sodium are 4.5 eV and 2.3 eV respectively. If the threshold wavelength λ for sodium is $5460 \mathring A$, the value of λ for tungsten is
  • A
    $5893 \mathring A$
  • B
    $10683 \mathring A$
  • ✓
    $2791 \mathring A$
  • D
    $528 \mathring A$
✓

Answer

Correct option: C.
$2791 \mathring A$
$2791 \mathring A$

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