Spot the false statement

Exercise and reference answers

Questions

1. False statement

   Intensity sets their maximum energy

   Statements

   1. Intensity sets how many electrons come out
   2. Intensity sets their maximum energy
   3. Frequency sets their maximum energy

2. False statement

   Every metal has the same threshold

   Statements

   1. Below threshold no emission occurs at all
   2. The threshold depends on the metal
   3. Every metal has the same threshold

3. False statement

   Millikan proposed the quantum of light

   Statements

   1. Millikan proposed the quantum of light
   2. de Broglie proposed matter waves
   3. Einstein explained the photoelectric effect

4. False statement

   Work function is measured in metres

   Statements

   1. Work function is the escape energy
   2. Work function is measured in metres
   3. Stopping potential kills the photocurrent

Instructions

Two statements are true and one is false. Tap the false one.

Explanation