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lenses in fine quality cameras are coated to reduce the reflection from the lenses. if the coating material has an index of refraction between that of air and glass, what thickness of coating will produce the least reflection?

User Cmousset
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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.

User Mariajose
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