What is cosmic microwave background radiation composed of?
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The cosmic microwave background (CMB, CMBR) is electromagnetic radiation as a remnant from an early stage of the universe in Big Bang cosmology. In older literature, the CMB is also variously known as cosmic microwave background radiation (CMBR) or "relic radiation".
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- Microwaves are electromagnetic radiations with wavelengths between (10-³) and (10-1).
- Micowaves cause water and fat molecules to vibrate so they are helpful in microwave cooking ovens.
- They are used in mobile phones and WIFI.
- They find place in radars also which is essential in ships, aircraft and weather forecasters to send signals
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