The principle that describes the force on a charge in a magnetic field was named for who

The principle that describes the force on a charge in a magnetic field was named for Hendrik Lorentz, and the principle is named as Lorentz force.

Hendrik Antoon Lorentz (18 July 1853 – 4 February 1928) was a Dutch physicist who shared the 1902 Nobel Prize in Physics with Pieter Zeeman for the discovery and theoretical explanation of the Zeeman effect. 

wavelegth as in spectrum red oygbiv

electric field is a function of 1/r^2

yes, the force per unit charge for a point charge is inverse square law.