Why objects in the nanoscale cannot be seen by visible light? How do we see them?
Why objects in the nanoscale cannot be seen by visible light? How do we see them?
Homework Answers
ANSWER-
Nanoscale is the size between 1 to 100 nano-meters ( and 1 nano-meter is billionth of a meter or 10-9 meters).
And as visible light has wavelength between 380 to 740 nano meters ( which is much larger than size of nanoscale).
Due to this difference between visible light wavelength and nano-scale it is impossible to see nanoscale in visible light.
We cannot 'SEE THEM' ,but can detect them using Scanning Electron Microscope (SEM) or using a Tunnelling electron microscope (TEM) or even via Atomic Force Microscope (AFM)
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