Let Fourier transform of a signal x(t) is X(f). If Fourier transform of X(t) is given by x(-f) then x(t) can only be a real signal:
a. True
b. False
Fourier transform of a sinusoidal wave can be calculated.
a. True
b. False
Modification of the phase response in frequency domain, is due to time shift in time domain
a. True
b. False
ANSWER: B
Find the energy of the signal 2g(t) (given in question 4).
a. 1
b. 4Ï€
c. 4Ï€2
d. None
ANSWER: A
Find the DC value of y"(t), ( y(t) as defined in question 6).
a. 1
b. π/1
C. π
d. None
ANSWER : B
Find the Fourier transform of y(t). (Hint: use the limit expression of x(t) of Q8.)
a.B/2jw
b.B/jw
C.2B/jw
d. None
Find the Fourier transform of u(t). (Hint: Use Fourier Transform of y(t) of Q9)
a. 5 (w) + 1 jw
b. 8(w) + 2jw
C. πd(W) + 1 jw
d. None