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ProfessorRadiowaves 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.
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Do microwaves or radiowaves have longer wavelengths?
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.
What can you use radiowaves for?
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.
What electromagnetic waves have the longest wavelengths?
Radio waves have the longest wavelengths among electromagnetic waves.
What is an example of an electromagnetic wave?
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.
What happens when a metal TV aerial absorbs a radio wave?
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.
