WHAT IS FREQUENCY DIAGRAM?

What is the value of frequency of AC in India?

Types Of Frequency Diagrams

Two sinusoidal voltage of the same frequency are shown in the diagram. What is the frequency, and the phase relationship between the voltage? Frequency in Hz phase lead of N over M in radius

What is the natural frequency of LC circuit ? What is the reactance of this circuit at this frequency ?

What is "A" and "B" in given diagram