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Need help with this homework problem, shouldn't be too hard

  1. Jan 23, 2010 #1
    1. E=hf "find the energy level of light with a frequency of 4.3 x 10 so the 14th jules

    2. E=hf

    3. Have no clue, tried multiplying Plancks constant by frequency but idk if its right
  2. jcsd
  3. Jan 23, 2010 #2


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    Can you at least try to use understandable English? What does "so the 14th jules" mean? But yes, E=hf, so you just multiply frequency by h to get energy. (I assume you mean energy and not energy level. Energy level is an entirely different concept.)
  4. Jan 23, 2010 #3
    Sorry about that I meant to write TO the 14th joule, but thanks for the help I think I got it.
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