First of all we should know what is a radio waves and for what purpose it is used! Download this as doc. So, Radio waves An electromagnetic wave of a frequency between about 10 4 and 10 11 or 10 12 Hz, as used for long-distance communication. These are make-up parts of electromagnetic spectrum made by packets of energy of different wavelengths. These waves are similar to visible light waves,X-rays, gamma rays etc. Radio waves have important role in the communication and navigation systems. These are used in wireless computer networks,broadcasting.In our mobiles and laptops, WiFi Bluetooth GPS are used. Hazards As for our cellular networks, many towers are installed for this purpose.But obviously this is half-good. ...
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