Which of the following has the shortest wavelength? A. Gamma rays B. Radio waves C. Microwaves D. Infrared rays

Gamma rays have the shortest wavelength.

• Gamma rays are a type of electromagnetic radiation with the shortest wavelength and highest frequency. They are produced by radioactive decay and nuclear reactions. Gamma rays can be very harmful to living tissue, but they are also used in medical imaging
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• Radio waves are a type of electromagnetic radiation with a longer wavelength than gamma rays. They are produced by natural processes such as lightning and by human-made devices such as radio transmitters. Radio waves are used for communication, navigation, and astronomy.
• Microwaves are a type of electromagnetic radiation with a wavelength between radio waves and infrared light. They are produced by microwave ovens and radar. Microwaves are used for cooking, communication, and industrial heating.
• Infrared light is a type of electromagnetic radiation with a wavelength longer than microwaves. It is produced by hot objects and is used in remote controls, night vision, and infrared photography.

The wavelength of electromagnetic radiation is inversely proportional to its frequency. This means that the shorter the wavelength, the higher the frequency. Gamma rays have the shortest wavelength and highest frequency of all types of electromagnetic radiation.