What is the equivalent continuous length for a train source made of 5 seeds with 0.8 cm distance between the source centers?

To determine the equivalent continuous length of a train source made up of 5 seeds with specified distances between their centers, it's important to understand how to calculate the overall length based on the arrangement of the seeds.

When calculating the equivalent length, the distance between the centers of adjacent seeds must be considered. In this case, you have 5 seeds, and there are 4 gaps between them. The seeds are arranged such that the first seed starts at the origin point. The distance between the centers of each pair of adjacent seeds is 0.8 cm.

To compute the total length, you account for the length of the first seed and the distances between all seeds.

1. The first seed occupies a point with no additional length needed to be added for it.

2. For the subsequent seeds, you have 4 gaps (since there is one gap between each pair of seeds). Each of these gaps contributes 0.8 cm to the total length.

The calculation can be structured as follows:

• Start from the first seed, which has no additional length contributed:

• Add the distance between the centers of the first and second seeds (0.8 cm).

• Add the distance between the second and third seeds (0.8 cm).