Answer:
Thickness = 103.38 nm
Explanation:
Given that:
The refractive index of the thin soap bubble = 1.33
The wavelength of the light = 550 nm
The minimum thickness that produces a bright fringe can be calculated by using the formula shown below as:
[tex]Thickness=\frac {\lambda}{4\times n}[/tex]
Where, n is the refractive index of the thin soap bubble = 1.33
[tex]{\lambda}[/tex] is the wavelength
So, thickness is:
[tex]Thickness=\frac {550\ nm}{4\times 1.33}[/tex]
Thickness = 103.38 nm