Knock out the true statements

Exercise and reference answers

Questions

1. Question

   Eliminate the true statements about the effect.

   Choices

   1. Item

      Brighter light raises the electron energy

      Correct

      Yes

   2. Explanation

      More photons per second means more electrons per second.

      Item

      Intensity sets how many electrons escape

   3. Explanation

      No emission occurs at all below that minimum frequency.

      Item

      Below threshold nothing is emitted

   4. Explanation

      It is the minimum energy needed to leave the metal surface.

      Item

      The work function is the escape energy

Instructions

Remove the statements that are true. One false one should survive.

Explanation