Answer:
103.70 nm
Explanation:
The minimum thickness of the film is given by [tex]t=\frac{\lambda }{4n}[/tex] where [tex]\lambda[/tex] is the wavelength and n is the index of the refraction
We have n =1.35
Wavelength [tex]\lambda =560nm[/tex]
So the minimum thickness of the film [tex]t=\frac{\lambda }{4n}=\frac{560}{4\times 1.35}=103.70\ nm[/tex]
