An infinite number of odd harmonics are present in a sine wave.

an-infinite-number-of-odd-harmonics-are-present-in-a-sine-wave

An infinite number of odd harmonics are present in a sine wave.

A. True

B. False

I had been asked this question in exam.

I need to ask this question from Fourier Theory in division Fundamentals of Electronics of Avionics

Right option is A. True

The best explanation: A square wave is made up of a sine wave at the fundamental frequency of the square wave plus an infinite number of odd harmonics. For example, if the fundamental frequency of the square wave is 1 kHz, the square wave can be synthesized by adding the 1-kHz sine wave and harmonic sine waves of 3 kHz, 5 kHz, 7 kHz, 9 kHz, etc.