What visible wavelengths will be constructively reflected if the film is surrounded by air on both sides?

1 answer:

3 0

The visible wavelengths constructively reflected by the film when it is surrounded by air on both sides can be calculated using the equation:

lambda = 2t*(n2/n1)

where:

lambda is the wavelength,
t is the thickness, and;
n1 and n2 are indexes of refraction

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The correct answer to the question is A) Electrons.

EXPLANATION:

The electrical conductivity of a metal or any substance depends on the free electron concentration of the metals.

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When we maintain potential difference across the two ends of a conductor, the free electrons are drifted towards the positive terminal of the battery.

Hence, electrical conductivity of a substance is the ability of the electrons to move inside the substance.

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