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The magnitude response of a normalised Butterworth low pass filter is | |
A. | linear starting with value of unity at zero frequency and 0.707 at cut off frequency [Correct Answer] |
B. | non linear all through but with values of unity at zero frequency and 0.707 at cut off frequency [Wrong Answer] |
C. | linear upto cut off frequency and nonlinear thereafter [Wrong Answer] |
D. | nonlinear upto cut off frequency and linear thereafter [Wrong Answer] |
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