Photoelectric Effect

Demo

Audio photoelectric apparatus + Flashlight           Visual photoelectric apparatus

Concept Overview:

1. Visual and audio demonstration of photoelectrics

Lecturer Procedure

Step(s) to Follow Expected Result

1. Plug board into AC outlet

2. Shine light from flashlight onto photo tube (indicated by red arrow in photo above)

Buzzer will loudly sound

1. Plug strand of lights into outlet.

2. Turn on meter (switch is on the back)

3. Bring each light near phototube.

The colored LED will produce no effect on the meter.  The UV LED, however, will cause the meter to spike.

 

Identifier: 
E&M: C - 016