Question

A filter that passes all frequencies lying outside a certain range, while it attenuates all frequencies between the two designated frequencies is called?

(a) low pass filter

(b) high pass filter

(c) band elimination filter

(d) band pass filter

This question was posed to me during an online interview.

My query is from Filter Networks topic in section Filters and Attenuators of Network Theory

Answer 1

The correct choice is (c) band elimination filter

For explanation I would say: A band elimination filter passes all frequencies lying outside a certain range, while it attenuates all frequencies between the two designated frequencies. It is also referred to as band stop filter.