Referring to your frequency response curves explain how this

Referring to your frequency response curves, explain how this system responds to low frequency input signals (i.e. close to zero Hz). Contrast the frequency response of this system compared to a high-pass filter.

Solution

The simplest low pass filter is a firs order system with a frequency response function k becomes negligible and the transfer function tends to k. This is in contrast between the signals from low and high pass filters there may be a little difference.

Frequency response is the measure of the output spectrum of a system or device in response to a stimulus and is used to characterize the dynamics of the system. it is a measure of magnitude and phase of the output as a function of frequency in comparison to the input. The simplest form of active high pass filter which have an infinite frequency response that is the difference between the actual stop band response.So this how it responds to low pass and high pass filters.