Explain why is not advisable to use small values of i in performing an experiment on refraction through a glass prism?

Aballet student who learns with the of his instructor is demonstrating learning.

The slope of a velocity time graph over any interval of time gives the during that interval

Aproduction line at v. j. sugumaran's machine shop has three stations. the first station can process a unit in 7 minutes. the second station has two identical machines, each of which can process a unit in 16 minutes (each unit only needs to be processed on one of the two machines). the third station can process a unit in 10 minutes. ▼ is the bottleneck station, with a bottleneck time of nothing minutes per unit (enter your response as a whole number).