Final answer:
Cross-ties should be used at the maximum distance that provides the best resolution in interference patterns when multiple row patterns are employed.
Step-by-step explanation:
When using multiple row patterns in physics, cross-ties are used in interference patterns. The resolution limit and column arrangement in these patterns can be used to determine the maximum distance at which cross-ties should be used.
The point where one line's minimum pattern is exactly over the other line's second maximum pattern is known as the resolution limit. The interference pattern has the best resolution at this distance because the columns are the furthest apart from one another.
For example, in interference patterns of light waves, the angle between the interfering beams cannot be greater than 90°, so the maximum distance at which cross-ties should be used will depend on the wavelength of the light and the desired resolution.