The electromagnetic spectrum

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Question 18
Medium

The table below lists two applications of electromagnetic radiation and a characteristic of the wave used in the second application.

Sterilising medical equipmentThermal imaging of survivorsOrder of magnitude of detected wavelengthAGamma raysInfrared10−5 mBGamma raysInfrared10−7 mCUltravioletInfrared10−5 mDUltravioletRadio waves10−1 m \begin{array}{|c|c|c|c|} \hline & \textbf{Sterilising medical equipment} & \textbf{Thermal imaging of survivors} & \textbf{Order of magnitude of detected wavelength} \\ \hline \textbf{A} & \text{Gamma rays} & \text{Infrared} & 10^{-5}\text{ m} \\ \hline \textbf{B} & \text{Gamma rays} & \text{Infrared} & 10^{-7}\text{ m} \\ \hline \textbf{C} & \text{Ultraviolet} & \text{Infrared} & 10^{-5}\text{ m} \\ \hline \textbf{D} & \text{Ultraviolet} & \text{Radio waves} & 10^{-1}\text{ m} \\ \hline \end{array} ABCD​Sterilising medical equipmentGamma raysGamma raysUltravioletUltraviolet​Thermal imaging of survivorsInfraredInfraredInfraredRadio waves​Order of magnitude of detected wavelength10−5 m10−7 m10−5 m10−1 m​​

Which row in the table is correct?

Row A

Row B

Row C

Row D

The electromagnetic spectrum Questions

  1. GCSE
  2. /Physics
  3. /The electromagnetic spectrum