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Damn bruh y'all had to wait until after my exam to teach me this?!
![Wave Interference and Standing Waves [IB Physics SL/HL]](http://i.ytimg.com/vi/9vIYzsodceo/mqdefault.jpg)
![Wave Interference and Standing Waves [IB Physics SL/HL]](/img/tr.png)
![Reflection and refraction [IB Physics SL/HL]](http://i.ytimg.com/vi/7EdGxyV_2RY/mqdefault.jpg)
Damn bruh y'all had to wait until after my exam to teach me this?!