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Calculate W₀ using the formula W₀ = hc / λ₀, where h = 6.63×10^-34 J·s, c = 3×10^8 m/s, and λ₀ = 5000×10^-10 m. What is the result?

1. 4×10^-19 J
2. 3×10^-19 J
3. 5×10^-19 J
4. None of these

Correct answer: 4×10^-19 J

Solution

The work function W₀ is calculated using the formula W₀ = hc / λ₀. Substituting the given values, the result is 4×10^-19 J, which matches option A.

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