Diffraction limits

Longer wavelengths go through objects. Consider the bass sound in a cranked stereo. We can't hear the higher pitches because the higher shorter wave pitches don't escape the enclosed car. The longer deeper bass does. Similarly with light, the shorter the wavelength the more the reflection. Electron microscopes emit shorter waves then light hence we get more reflection. Diffraction limit => if an object is less then about 1 wavelength then the object is not "seeable" with that wavelength. This size is called the diffraction limit.