I need help on this homework problem and I do not understand how to work on it. Please help me with this problem.
The photoelectric work function of a metal is the minimum energy needed to eject an electron by irradiating the metal with light. For calcium, this work function equals 4.34X10^(-19)J. What is the minimum frequency of light required to observe the photoelectric effect in calcium?
college: Chemistry - GK, Sunday, February 15, 2009 at 8:39pm
This question should have been posted on the PHYSICS board.
college: Chemistry - DrBob222, Sunday, February 15, 2009 at 8:50pm
delta E = hf
Substitute 4.34 x 10^-19 for delta E, substitute Planck's constant for h and calculate frequency.
college: Chemistry - Anonymous, Tuesday, September 22, 2009 at 9:36pm