The resonant frequency of m-derived low pass filter in terms of the cut-off frequency of low pass filter is?(a) fc/√(1-m^2)(b) fc/√(1+m^2)(c) fc/(π√(1-m^2))(d) fc/(π√(1+m^2))I got this question by my college professor while I was bunking the class.The query is from m-Derived T-Section in division Filters and Attenuators of Network Theory

The resonant frequency of m-derived low pass filter in terms of the cu

1.	The resonant frequency of m-derived low pass filter in terms of the cut-off frequency of low pass filter is?(a) fc/√(1-m^2)(b) fc/√(1+m^2)(c) fc/(π√(1-m^2))(d) fc/(π√(1+m^2))I got this question by my college professor while I was bunking the class.The query is from m-Derived T-Section in division Filters and Attenuators of Network Theory
Answer» The correct option is (a) fc/√(1-m^2) To explain: If a sharp cut-off is DESIRED, the FREQUENCY at INFINITY should be near to fc. The resonant frequency of m-derived low PASS FILTER in terms of the cut-off frequency of low pass filter is fr=fc/√(1-m^2).

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