HW 1.3 (6th edition)

[Jeannine 1I]

Question 1.3 asks, "What happens when frequency of electromagnetic radiation decreases?" and the answer is "the extent of the change in the electrical field at a given point decreases." Would someone be able to explain to me what the answer to this means, or how this relationship is known? I'm kinda confused about it.

[Chem_Mod]

It's referring the slope of the wave. When the frequency decreases the wave is "stretched" out, so the slope of the wave at any given point is less. The electric field is proportional to the magnitude of the slope of the wave.