# Problem: Consider a slab of crown glass and a tank full of water. What is the ratio of thickness of the slab of crown glass, dg, to the depth of water, dw, that contains the same number of wavelengths of the monochromatic lighting passing from one substance to another?

###### FREE Expert Solution

The number of wavelengths:

$\overline{){\mathbf{#}}{\mathbf{w}}{\mathbf{a}}{\mathbf{v}}{\mathbf{e}}{\mathbf{l}}{\mathbf{e}}{\mathbf{n}}{\mathbf{g}}{\mathbf{t}}{\mathbf{h}}{\mathbf{=}}\frac{\mathbf{D}\mathbf{i}\mathbf{s}\mathbf{t}\mathbf{a}\mathbf{n}\mathbf{c}\mathbf{e}}{\mathbf{W}\mathbf{a}\mathbf{v}\mathbf{e}\mathbf{l}\mathbf{e}\mathbf{n}\mathbf{g}\mathbf{t}\mathbf{h}}}$

There is same number of wavelengths.

83% (468 ratings) ###### Problem Details

Consider a slab of crown glass and a tank full of water. What is the ratio of thickness of the slab of crown glass, dg, to the depth of water, dw, that contains the same number of wavelengths of the monochromatic lighting passing from one substance to another?