Home Physics Electron, Photon, Photoelectric Effect and X-rays Photon and Photoelectric Effect The work function for tungsten and sodium ar…
Physics Electron, Photon, Photoelectric Effect and X-rays Photon and Photoelectric Effect MCQ (Single Correct)

The work function for tungsten and sodium are 4.5 eV and 2.3 eV respectively. If the threshold wavelength λ for sodium is , the value of λ for tungsten is:

A
B
C
D

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The correct answer is:
C

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