Producing EM waves in laboratory

[Andy123]

Homework Statement

I am just wondering is there any apparatus available to produce EM waves of arbitrary wavelength and intensities? If not, how I can produce an EM wave of my desired wavelength in the laboratory?

Homework Equations

The Attempt at a Solution

I completely have no idea :(

 

[Borg]

I am just wondering is there any apparatus available to produce EM waves of arbitrary wavelength and intensities?

Yes, the light switch.

Seriously though. The spectrum that you get is going to be based on the apparatus that you're using. You're not going to get X-rays from a light bulb and you're not going to get visible light from a radio transmitter. There isn't a single apparatus that will give you every possible EM wavelength.

 

[Andy123]

lol thanks!