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So using the standard equation: E = hf, we can find the relationship between light intensity and wavelength as follows: c = lambda x f Therefore, f = c/lambda substitute this in the standard equation to get: E = (h c)/lambda Where h = planks constant, and c = speed of light.
Quantifying intensity is much more difficulty than quantifying frequency and duration. One way to quantify intensity is by use an RPE scale. The REP scale (ratings of perceived exertion) use a 1-10 measurement, with a 10 being the hardest level of intensity (race level effort).ote: In mountain biking, duration is measured in time while road cycling duration is measured in miles. INTENSITY. Combining both frequency and duration refers to the volume of training, thus much easier to quantify.