What is varied in a FM wave?

What quantity remains unchanged in FM wave?

An oscillator is producing FM waves of requency 2kHz with a variation of 10kHz . What is modulating index?

An oscillator is producing FM waves of frequency 2 kHz with a variation of 10 kHz. What is the modulation index?

An oscillator is producing FM waves of frequency 2kHz with a variation of 10kHz . What is modulating index?

An oscillator is producing FM waves of requency 2kHz with a variation of 10kHz . What is modulating index?

In Amplitude Modulation, the amplitude of the carrier wave is varied in accordance with the information signal.What is meant by modulation index?

What is modulation index of an FM wave ?

What is the meant by deviation in frequency of FM wave?