Final answer:
Spacing distance between OTE working equipment is involving interference patterns.
The provided data is about a double-slit experiment, but further context is needed for an exact answer.
Step-by-step explanation:
The spacing distance between Overhead Transparency (OTE) working equipment refers to a concept in physics related to interference patterns, such as those seen in double-slit experiments.
Given the information about fringes being 7.50 mm apart on a screen 2.00 m from double slits separated by 0.120 mm, a student might be expected to calculate the wavelength of the light or other related physical quantities.
However, without a specific context or additional information about what is meant by "OTE working equipment" in this question, providing an accurate spacing distance is not possible.
Spacing distance between OTE working equipment is ______________.