Big doses of radio waves are thought to cause cancer and other serios disorders. People who live near by overhead poer cables claim that the low frequency field affects their health.
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Radiowaves can cause heating effects in tissues at high power levels, leading to burns and other thermal injuries. Prolonged exposure to high levels of radiowaves may also increase the risk of cancer. However, the levels of radiowave exposure from everyday sources like cell phones and Wi-Fi are considered safe.
Radiowaves have longer wavelengths than microwaves. Microwaves typically have wavelengths ranging from 1 millimeter to 1 meter, while radiowaves have wavelengths longer than 1 meter.
Radio waves are used for communication through radio broadcasting, television broadcasting, radar, GPS systems, and wireless networks like Wi-Fi and Bluetooth. They are also used for heating in microwave ovens and medical applications like MRI scans.
Radio waves have the longest wavelengths among electromagnetic waves.
Light is an example of an electromagnetic wave. It is a type of energy that can travel through a vacuum and does not require a medium for propagation.
When a metal TV aerial absorbs a radio wave, the wave's energy is converted into a tiny electrical current in the antenna. This current is then used to produce an electrical signal that the TV tuner can interpret and translate into audio or video content for the viewer to watch on the TV screen.