What is the work function of a certain metal if a strong beam of light can cause a breakaway of electron from its surface?
[h = 6.63 × 10\(^{−34}\) Js, f\(_0\) = 5.3 × 10\(^{13}\) Hz]
Verified Correct Answer: .
Step-by-Step Mathematical Solution
Work function W\(_0\) = h f\(_0\)
W\(_0\) = (6.63 × 10\(^{−34}\)) × (5.3 × 10\(^{13}\)) = 3.51 × 10\(^{−20}\) J
Source: WAEC / JAMB / NECO Classroom Archive (Record #78276)