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Dual Nature of Radiation and Matter: NEET 2023

Easy· Einstein's Photoelectric Equation: Energy Quantum of Radiation· +4 / −1

The work functions of Caesium (Cs), Potassium (K) and Sodium (Na) are

2.14\ \mathrm{eV}

,

2.30\ \mathrm{eV}

and

2.75\ \mathrm{eV}

respectively. If incident electromagnetic radiation has an incident energy of

2.20\ \mathrm{eV}

, which of these photosensitive surfaces may emit photoelectrons?

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