Final answer:
The minimum undersampling rate for a signal with a bandwidth from 100 kHz to 110 kHz is 20 kHz to create non-overlapping spectrum replicas. This rate is higher than the lowest frequency of the bandwidth-limited signal.
Step-by-step explanation:
The subject of the student's question is concerned with signal processing, specifically with the concept of undersampling or sub-Nyquist sampling. A bandwidth-limited signal has a spectrum covering a range of frequencies, in this case, from 100 kHz to 110 kHz. To avoid overlapping spectrum replicas when undersampling, the sampling rate must be greater than twice the width of the signal's bandwidth. The bandwidth here is 110 kHz - 100 kHz = 10 kHz. Therefore, the minimum undersampling rate to avoid spectrum overlap is 20 kHz, which is twice the width of the bandwidth. This undersampling rate is also higher than the minimum frequency present in the bandwidth-limited signal, which is 100 kHz.