Question

Which of the following laws of conservation holds in Einstein's photoelectric equation? 
 

• A. \(\text{Charge}\)
• B. \(\text{Mass}\)
• C. \(\text{Momentum}\)
• D. \(\text{Energy}\)

Hint:

The law of conservation of energy is fundamental in all physical processes, including photoelectric emission.

Answer 1

The Correct Option is D

Einstein's photoelectric equation states that: \[ h\nu = \phi + K_{\text{max}}, \] where \(h\nu\) is the energy of the incident photon, \(\phi\) is the work function, and \(K_{\text{max}}\) is the maximum kinetic energy of the ejected electron. This conservation equation explicitly describes the conservation of energy.