Photoelectric Effect & Dual Nature
Photons, de Broglie wavelength, photoelectric equations.
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Take a full mock →Q1 · Photoelectric Effect & Dual Nature · EASY
The work function of a metal is 4.2 eV. Light of wavelength 200 nm falls on it. The maximum kinetic energy of emitted photoelectrons is approximately: (hc = 1240 eV·nm)
Q2 · Photoelectric Effect & Dual Nature · EASY
The work function of a metal surface is 2.0 eV. When light of wavelength 400 nm is incident on the surface, the maximum kinetic energy of the emitted photoelectrons is: (h = 6.6 × 10⁻³⁴ J·s, c = 3 × 10⁸ m/s, 1 eV = 1.6 × 10⁻¹⁹ J)