Verdict: trick or simple curiosity?
Using a pot or rice cooker lid as a wave reflector is a neat idea, but with variable results. If you like to tinker and experiment, it’s worth a try! You might be pleasantly surprised by the effects, even small ones, that a simple orientation adjustment can have.
And if it doesn’t work? At least you’ll have learned something interesting about waves and their reflection!
So, ready to give it a try?
