GATE 2016 EE - SET 2 Question 18

H(S)=\frac{1}{S+1}

Input given \Rightarrow \cos (t) and output given \Rightarrow A\cos (t+\alpha )

A=\left | H(S) \right |=\left | \frac{1}{S+1} \right |

A=\frac{1}{\sqrt{1+1}}=\frac{1}{\sqrt{2}}=0.707