A band limited low-pass signal 𝑥(𝑡) of bandwidth 5 kHz is sampled at a sampling rate 𝑓𝑠

Q. A band limited low-pass signal 𝑥(𝑡) of bandwidth 5 kHz is sampled at a sampling rate 𝑓_𝑠. The signal 𝑥(𝑡) is reconstructed using the reconstruction filter 𝐻(𝑓) whose magnitude response is shown below:

The minimum sampling rate 𝑓_𝑠 (in kHz) for perfect reconstruction of 𝑥(𝑡) is               .

Ans: 13