Soap bubbles can display impressive colors, which are the result of the enhanced reflection of light of particular wavelengths from the bubbles' walls. For a soap solution with an index of refraction of 1.29, find the minimum wall thickness that will enhance the reflection of light of wavelength 709 nm in air.

The value is  

Explanation:

From the question we are told that

   The refractive index is  

    The wavelength is

Generally the condition for constructive interference is  

At minimum thickness(t)  the order of the fringe(n) will be equal to   1

So

=>      

an ion is a charged atom or molecule. it is charged because the number of electrons do not equal the number of protons in the atom or molecule. an atom can acquire a positive charge or a negative charge depending on whether the number of electrons in an atom is greater or less then the number of protons in the atom.

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explanation: