Section: Science

152) View Additional Information

Consider the following results, obtained using 5.0 eV photons and the same photocell that is discussed in the passage.

Table
Relative intensity of light Electrical current (mA) Maximum kinetic energy of ejected electron (eV)
low 28 3.1
medium 42 3.1
high 58 3.1


The maximum kinetic energy of the ejected electron, 3.1 eV, was not the expected value. The expected value was: