Photoelectric Effects and deBroglie Equation: Practice Problem & Solution

Solution Explained:

To solve this problem, we apply the core principles of Photoelectric Effects and deBroglie Equation. Understanding the underlying formula is key to arriving at the correct answer below:

The stopping potential $V_0$ is numerically equal to the maximum kinetic energy of the emitted photoelectrons expressed in electron-volts (eV). Since $K_{max} = 0.5 eV$, the stopping potential is $0.5 V$.