Answer:
The wave nature of light is the fundamental resolution of an optimal instrument.
Explanation:
All the optical instruments are working on light that's why they are known as optical instrument. Optics means the behavior of light or sight. Light is an electromagnetic radiation which comes in the category of electromagnetic spectrum. It travels in the form of wavelength.
So, optical instruments are based on wave nature of light.
Is there a picture or do you want me to explain
The larger the solute the slower the rate of diffusion. Smaller the solute, faster the rate of diffusion. If the shape of the solute has a large surface area then it'll have the faster rate of diffusion. Shape of solute that has a small Surface area, has a slower rate of diffusion