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

1. Jan 23, 2010

### TheChaplain

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. Jan 23, 2010

### ideasrule

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.)

3. Jan 23, 2010

### TheChaplain

Sorry about that I meant to write TO the 14th joule, but thanks for the help I think I got it.