Q. 11 A low-pass filter with a cut-off frequency of 30 Hz is cascaded with a high pass
filter with a cut-off frequency of 20 Hz. The resultant system of filters will function
as
(A) an all – pass filter
(B) an all – stop filter
(C) an band stop (band-reject) filter
(D) a band – pass filter
Answer:(D)
Explanation:
