Nonreflective Coatings for Camera Lenses Reduce the Loss of Light

question 15

Short Answer

Nonreflective coatings for camera lenses reduce the loss of light at various surfaces of multi-lens systems, as well as preventing internal reflections that might mar the image. Find the minimum thickness of a layer of magnesium fluoride (n = 1.38) on flint glass (n = 1.66) that will cause destructive interference of reflected light of wavelength λ = 550 nm, a wavelength which is near the middle of the visual spectrum.

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Definitions:

Productivity

The effectiveness of productive effort, especially in industry, as measured in terms of the rate of output per unit of input.

Experimental Group

The group in an experiment that receives the treatment or intervention under study, allowing researchers to measure its effects.

Room Temperature

The ambient temperature of a living space, usually considered to be around 20-22 degrees Celsius or 68-72 degrees Fahrenheit.

Aggressive Behaviour

Actions or responses by an individual that are intended to harm or intimidate another.