ICSE Class 9 Answered
why is an electron emitted when a light ray is incident on a metal (i.e. when photoelectric effect occurs
Asked by TEJIT PABARI | 12 Jul, 2012, 02:46: PM
Expert Answer
Each material has a work function, i.e. the minimum energy required by an electron to get itself enough excited so that it can be freed from the interactions with atom andsurroundings.
SO in this case that energy is provided by the light ray incident on it.
Answered by | 14 Jul, 2012, 08:44: PM
ICSE 9 - Physics
Asked by pritiswansi1996 | 28 Feb, 2021, 05:22: PM
ANSWERED BY EXPERTICSE 9 - Physics
Asked by officeofhng | 24 Aug, 2018, 05:45: PM
ANSWERED BY EXPERT
