Question

Maximum kinetic energy $K_{\max }$ of emitted photoelectrons is determined by

• A. total number of photons absorbed
• B. rate of photons incident over surface
• C. energy of each photon
• D. distance of source from the surface

Answer 1

Answer: (C)

According to Einstein's experimental results, $K_{\max }$ depends linearly on $v$ and is independent of intensity of radiation. It is determined by energy of each photon.