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Conservation of energy

  1. Sep 25, 2010 #1
    We receive energy from the sun as heat and light(radiations incld).
    Ok..I know that the heat we get heats up the land, water etc ... but what about the light falling on earth .. which energy is it converted into?
    There is one case of it being used in photosynthesis and also converted to electricity by solar cells but what about the light falling on the ground?
  2. jcsd
  3. Sep 25, 2010 #2


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    Most of the light falling on the earth will be converted into heat or reflected back out into space. This conversion of light into heat is the only way the sun heats up the earth.
  4. Sep 26, 2010 #3
    Thanks man !
    Got it.
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