Cosmic Rays Gamma Rays X Rays UV Visible Rays Infra Red Microwave Radio
- Cosmic rays – it originates in outer space and continuously falls on earth.
- Ultra Violet Rays – invisible + Sun’s rays have it.
- Infra red – High Thermal effects.
- Micro – Telephone circuits and radar.
- Radio – used for Broad Casting.
- VIBGYOR (Max. Wavelength of Red colour)
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