You could probably expect normal plant growth, as a white light is similar to the sun in the respect that it contains all colors of the spectrum.
So the problem are asking to find the value of G base on the formula of the said equation of the magnitude of gravitational attraction on either body. Base on that, the possible answer or the derived formula of the said function is G = Fr^2/m1m2. I hope you are satisfied with my answer and feel free to ask for more
Frequency can be found by counting the number of troughs per second in a wave diagram.