Speaker and Candle

Concept Overview

Sound waves have a longitudinal nature

Lecturer Procedure

Step to Follow

Set function generator to create a frequency of 10-20 Hz.

Expected Result

Candle will flicker, sound will be at a minimum (frequency is below threshold of hearing).

Note:

If a camera is requested for the candle, be sure to set the exposure to the lowest setting so that the candle flame is visible. Camera also needs to be level with candle to show the movement of the flame.