Question

circle the form of radiation with the lower energy
violet or red light
x-rays or microwaves
uv radiation or red light

Answer 1

- Violet or red light: red light (red has lower frequency and energy)
- X-rays or microwaves: microwaves (microwaves have much lower frequency and energy)
- UV radiation or red light: red light (UV has higher frequency and energy)

Reason: photon energy ∝ frequency (E = h·f), so lower frequency (longer wavelength) = lower energy.