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The frequency of a sine wave is 30Hz. What is its period?(a) 3333ms(b) 333.3ms(c) 33.33ms(d) 3.333msThe question was posed to me by my school principal while I was bunking the class.This is a very interesting question from Angular Relation of a Sine Wave topic in chapter Introduction to Alternating Currents and Voltages of Network Theory

Answer»

The correct CHOICE is (C) 33.33ms

The best explanation: We KNOW that the frequency and time PERIOD are inversely proportional to each other. SoT=1/f =1/30=0.03333s=33.33ms.



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