Photoelectric Effects and deBroglie Equation: Practice Problem & Solution

Short Solution (Best for NEET):

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:

Planck's constant has the value $6.63 \times 10^{-34} J \cdot s$. Since $1 J = 1 kg \cdot m^2/s^2$, the unit $J \cdot s$ is equivalent to $kg-m^2/s$.