Identify the different sine wave sources you experience in real life and also come across in the electronics lab.

All electromagnetic waves, such as light or radio waves are oscillatory and can therefore be described mathematically with a sine wave. Microwaves, emitted by microwave cooking appliances are also oscillatory and therefore take a sine wave form. The alternating current that drives the electricity within our homes and is found to be emitted by AC power supplies within electronics workshops are also sine waves.