What is the difference between 60Hz and 120Hz
Frequency is the measure of repetitions or occurrences of anything per unit time. Frequency is a derived quantity. Its SI unit is Hertz and it is denoted as Hz. Actually, 1 Hz means the number of repetitions in one second. If a sinusoidal wave repeats itself 15 times in one second than its frequency is 15Hz. Similarly, 60 Hz and 120 Hz are the two entirely different terms.