GKFix MCQ Question

What is the work function in joules for caesium (2.14 eV)?

• A. 2.14 × 10⁻¹⁹ J
• B. 3.42 × 10⁻¹⁹ J
• C. 4.00 × 10⁻¹⁹ J
• D. 5.12 × 10⁻¹⁹ J