The nonreflective coating on a camera lens with an index of refraction of 1.23 is designed to minimize the reflection of 544-nm light. if the lens glass has an index of refraction of 1.56, what is the minimum thickness of the coating that will accomplish this task?

Thickness = 110.57 nm

Explanation:

Given that:

The refractive index of the lens = 1.56

The refractive index of the non reflecting coating = 1.23

The wavelength of the light = 544 nm

The thickness can be calculated by using the formula shown below as:

Where, n is the refractive index of the non reflecting coating = 1.23

is the wavelength

So, thickness is:

Thickness = 110.57 nm

explanation:

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