Diffraction - Turn on the red light and then look at it through the slit marked "1" and then the slit marked "1 thin", which is a smaller opening.

1. What creates more diffraction, the bigger or the smaller slit? Wider bands mean more diffraction.

Finally, turn on the red and blue lights and then look at them through the slit marked "1". You know which wavelength is bigger from the previous page.

1. What creates more diffraction, a bigger or a smaller wavelength?
2. From this, why can we hear around corners but not see around them? Remember, sound has a much bigger wavelength than light.

Can someone help me with these questions? I'm a bit confused.