Question

In order to get back the original signal from sampled signal , it is necessary to use(a) low pass filter(b) high pass filter(c) band pass filter(d) band reject filter

Answer 1

The correct answer is option A.

In order to get back the original signal from sampled signal , it is necessary to use low pass filter.

Low pass filter removes the components sending high frequency signals, smoothens edges and reconstructs the samples signal to give back original signal as output.

LPF removes signal noise too.

Answer 2

Hey mate !!!

Answer :-

Option a

Low pass filter .

Hope this helps you : D