Answer:
Step-by-step explanation:
The thickness of the coating that produces the least reflection will depend on the wavelength of the light being used and the specific refractive indices of the materials involved. However, in general, a quarter-wavelength coating can be used to minimize reflection. This means that the thickness of the coating should be equal to a quarter of the wavelength of the light being used divided by the difference in refractive indices between the coating material and the surrounding medium.
The formula for the thickness of a quarter-wave coating is:
t = (λ/4) / (n_coating - n_medium)
Where:
t = thickness of the coating
λ = wavelength of light
n_coating = refractive index of coating material
n_medium = refractive index of surrounding medium (e.g. air or glass)
By choosing a coating material with an appropriate refractive index and thickness, it is possible to reduce the amount of reflection from the lenses in a fine quality camera, leading to better image quality.