Question

Match the gain of the filter with the frequencies in the low pass filter

Frequency Gain of the filter

1. f < fH i. VO/Vin ≅ AF/√2

2. f=fH         ii. VO/Vin ≤ AF

3. f>fH         iii. VO/Vin ≅ AF

(a) 1-i,2-ii,3-iii

(b) 1-ii,2-iii,3-i

(c) 1-iii,2-ii,3-i

(d) 1-iii,2-i,3-ii

I got this question during an online interview.

This intriguing question comes from First Order Low Pass Butterworth Filter in chapter Active Filters of Linear Integrated Circuits