The signal whose waveform is not effected by a linear circuit is
(a) Triangular Waveform signal
(b) Rectangular waveform signal
(c) Sine/Cosine wave signal
(d) Sawtooth waveform signal
This question was posed to me by my college director while I was bunking the class.
Origin of the question is Frequency Response of Amplifier in section Signals and Amplifiers of Electronic Devices & Circuits