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

Rajasthan 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 $\lambda$ for sodium is $5460 \mathring A$, the value of $\lambda$ 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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