Rankers Physics

Photoelectric Effects and deBroglie Equation: Practice Problem & Solution

39. By photoelectric effect, Einstein proved: (2000)
$E = h\nu$
$KE = \frac{1}{2}mv^2$
$E = mc^2$
$E = \frac{-Rhc^2}{n^2}$

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:

Albert Einstein used Max Planck's quantum hypothesis to successfully explain the photoelectric effect. He proved that light interacts with matter as discrete quanta of energy (photons), where the energy of each photon is given by $E = h\nu$ .

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