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formula to find frequency of sound. IL intensity level decibel db I sound intensity watt. Frequency is the number of waves that pass a fixed point in unit time.
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I 0 reference intensity or least audible sound level watts. F Apparent frequency. The Greek letter lambda l is the symbol for wavelength.
F nn o nn s f.
F Apparent frequency. Therefore the frequency of the light wave is 42 10 14 Hz. Frequency in terms of angular frequency is articulated as Where o is the angular frequency. To calculate frequency we find the reciprocal of period.
