X-rays, infrared radiation, and radio waves are three types of electromagnetic radiation.
What is their order when listed by wavelength from the shortest wavelength to the longest?
radio waves→infrared→X-rays\text{radio waves} \rightarrow \text{infrared} \rightarrow \text{X-rays}radio waves→infrared→X-rays
X-rays→infrared→radio waves\text{X-rays} \rightarrow \text{infrared} \rightarrow \text{radio waves}X-rays→infrared→radio waves
infrared→X-rays→radio waves\text{infrared} \rightarrow \text{X-rays} \rightarrow \text{radio waves}infrared→X-rays→radio waves
X-rays→radio waves→infrared\text{X-rays} \rightarrow \text{radio waves} \rightarrow \text{infrared}X-rays→radio waves→infrared
198 exam-style questions on CIE IGCSE Physics Electromagnetic spectrum, covering Electromagnetic spectrum. Each one has a worked solution and a mark scheme showing where the marks go.