Resolving Power: Resolving power is the ability of an optical instrument to distinguish between two closely spaced, closely spaced objects or features. This...
Resolving Power:
Resolving power is the ability of an optical instrument to distinguish between two closely spaced, closely spaced objects or features. This means that the instrument can distinguish between objects that are separated by a distance that is comparable to the wavelength of light used.
How it works:
Resolving power is determined by the diffraction patterns created by the optical instrument's aperture and the object's diffraction pattern. Diffraction patterns are formed when light passes through the aperture and is scattered by the object. The width of the central maximum in the diffraction pattern tells us about the resolving power of the instrument.
Examples:
A microscope with a high resolving power can distinguish between two objects that are only a few micrometers apart.
An optical telescope with a high resolving power can distinguish between two stars that are separated by a few light-years.
The human eye has a resolving power of about 100,000, meaning that it can distinguish between objects that are separated by about 100,000 wavelengths of light