What is the threshold frequency of radiation for caesium atom if its work function is 1.9 eV? - ATOMIC STRUCTURE Quiz | GKFix.in

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Question

What is the threshold frequency of radiation for caesium atom if its work function is 1.9 eV?

A. 3.12 × 10^14 Hz
B. 4.59 × 10^14 Hz
C. 5.75 × 10^14 Hz
D. 6.91 × 10^14 Hz

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