The expression of m of the m-derived low pass filter is?(a) m=√(1+(fc/fr)^2)(b) m=√(1+(fc/f)^2)(c) m=√(1-(fc/fr)^2)(d) m=√(1-(fc/f)^2)I had been asked this question in a national level competition.My question comes from m-Derived T-Section topic in chapter Filters and Attenuators of Network Theory

The expression of m of the m-derived low pass filter is?(a) m=√(1+(f

1.	The expression of m of the m-derived low pass filter is?(a) m=√(1+(fc/fr)^2)(b) m=√(1+(fc/f)^2)(c) m=√(1-(fc/fr)^2)(d) m=√(1-(fc/f)^2)I had been asked this question in a national level competition.My question comes from m-Derived T-Section topic in chapter Filters and Attenuators of Network Theory
Answer» The correct choice is (C) m=√(1-(fc/fr)^2) To EXPLAIN I would say: As fr=fc/√(1-m^2). The expression of m of the m-derived low PASS FILTER is m=√(1-(fc/fr)^2).

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