Question

1a. using the graphic below what type of electromagnetic radiation has the lowest energy? the electro magnetic spectrum wavelength (meter) radio microwave infrared visible ultraviolet x - ray gamma ray 10³ 10⁻² 10⁻⁵ 10⁻⁶ 10⁻⁸ 10⁻¹⁰ 10⁻¹² frequency (hz) 10⁴ 10⁸ 10¹² 10¹⁵ 10¹⁶ 10¹⁸ 10²⁰ infrared gamma ultraviolet radio clear all

Explanation:

Step1: Recall energy - frequency relation

The energy of electromagnetic radiation is given by $E = h
u$, where $h$ is Planck's constant and $
u$ is the frequency. Lower frequency means lower energy.

Step2: Identify lowest - frequency radiation

From the electromagnetic spectrum, radio waves have the lowest frequency among the given options.

Answer:

Radio