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    The answer is infrared radiation but i thought gamma has the highest frequency and therefore provides the most energy? please help me im confused
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    sorry the full question:

    Which part of the electromagnetic spectrum provides most of the energy to heat thewater in a solar thermal power station?
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    It's not asking about the amount of energy per photon... Gamma photons are more energetic than infrared photons... But they're incredibly scarse at the earths surface. Infrared beats gamma by sheer number of photons.
 
 
 
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