Signals and Systems Questions

• If is the Laplace transform of f(t) then f(0+) is
• Inverse Fourier transform of sgn (ω) is
• If I (s) , initial value of i(t) is
• The analog signal given below is sampled by 600 samples per second for m(t) = 3 sin 500 pt + 2 sin 700 pt then folding frequency is
• If f(t) = A d(t - a), F(s) is
• If then for this to be true x(t) is
• A voltage V(t) is a Gaussian ergodic random process with a mean of zero and a variance of 4 volt2. If it is measured by a dc meter. The reading will be
• δ(t) is a
• Which one most appropriate dynamic system?
• Inverse Laplace transform of is
• Laplace transform of a pulse function of magnitude E and duration from t = 0 to t = a is
• The z-transform of a particular signal is given where The system after implementation will be
• The final value theorem is
• Which one is a causal system?
• A signal g(t) = A then g(t) is a
• A box has 4 white and 3 red balls. Two balls are taken out in succession. What is the probability that both are white?
• If and A + B is
• In Laplace transform, multiplication by e-at in time domain becomes
• A first order system will never be able to give a __________ response band stop band pass all pass Choose the correct option
• The ROC of sequence in the Z.T. of sequence x[n] = an ∪ [n] is