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NEET 2023 Physics and Chemistry Solved Paper Code F1

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Question : 2 of 100
 
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The work functions of Caesium (Cs), Potassium (K) and Sodium (Na) are 2.14‌eV,2.30‌eV and 2.75‌eV respectively. If incident electromagnetic radiation has an incident energy of 2.20‌eV, which of these photosensitive surfaces may emit photoelectrons?
[NEET 2023]
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