IRA:5_1. Given x(0) 381-1.5) 30-15) and Fourieranderm of sit) is X), then X) is equal to (a) -1 (b) 0 (c) 1 (4) 2 (e) 3

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: Ira 5 1 Given X 0 381 1 5 30 15 And Fourieranderm Of Sit Is X Then X Is Equal To A 1 B 0 C 1 4 2 E 3 1 (19.57 KiB) Viewed 39 times

: Ira 5 1 Given X 0 381 1 5 30 15 And Fourieranderm Of Sit Is X Then X Is Equal To A 1 B 0 C 1 4 2 E 3 2 (31.39 KiB) Viewed 39 times

: Ira 5 1 Given X 0 381 1 5 30 15 And Fourieranderm Of Sit Is X Then X Is Equal To A 1 B 0 C 1 4 2 E 3 3 (31.39 KiB) Viewed 39 times

: Ira 5 1 Given X 0 381 1 5 30 15 And Fourieranderm Of Sit Is X Then X Is Equal To A 1 B 0 C 1 4 2 E 3 4 (26.57 KiB) Viewed 39 times

: Ira 5 1 Given X 0 381 1 5 30 15 And Fourieranderm Of Sit Is X Then X Is Equal To A 1 B 0 C 1 4 2 E 3 5 (26.57 KiB) Viewed 39 times

IRA:5_1. Given x(0) 381-1.5) 30-15) and Fourieranderm of sit) is X), then X) is equal to (a) -1 (b) 0 (c) 1 (4) 2 (e) 3 Answer IRAIS 2. Gives that the Fourier transform of s) is X, if aan (a) complex valued function of es with real and imaginary parts (b) real even function of is (c) real odd function of (d) imaginary even function of (e) imaginary odd function of Answer: IRASS 3. Given that X) is the Fourier transform of sit and X2(1-³), the amplitude and phase spectra of xi) are respectively (b) 1,2(1) (c)2(1), (d) 211 (e) 2(1+²), 0 Answer: IRAS 4 The following figure shows a system formed with two cascaded with impulse responses h) and Geven that the Fourier randoms of and are respectively Answer: ht) (0)2 (b) 4 (c)-2 (d)-j (e) 4 where fis frequency in H (a) 0 (b) 0.1 (01 (4) 2 (e) Answer )* -sp11, than X() in 10 none of the above IRAS 5. The signal xit) is a rectangular pulse having an amplitude of 1 and a pulse width of 0.1 second. The amplitude of the spectrum of 1-2) at frequency - His 37
IRA# 5 1. Given x(t)= -38(t-1.5) + 38(t+1.5) and Fourier transform of x(t) is X(), then X(0) is equal to (a) -1 (b) 0 (c) 1 (d) 2 (e) 3 Answer: IRA#5_2. Given that the Fourier transform of x(t) is X(o), if x(t) is real and x(t) = -sgn(t), then X(co) is a/an (a) complex-valued function of co with real and imaginary parts (b) real even function of co (c) real odd function of co (d) imaginary even function of co (e) imaginary odd function of co Answer: IRA#5_3. Given that X() is the Fourier transform of x(t) and X(o)= 2/(1+0²), the amplitude and phase spectra of x(t) are respectively (a) 2, 1+² (b) 1,2/(1+²) (c) 2/(1+00²), ein/2 (d) 2/(1+0), e2 (e) 2/(1+00²), 0 Answer:
IRA#5_4. The following figure shows a system formed with two cascaded subsystems with impulse responses hi(t) and h(t). Given that the Fourier transforms of hi(t) and h₂(t) are respectively H₁(c) = ¹² and H₂(0) = 4, the system overall frequency response is (a) 2 (b) 4 (c)-j200 Answer: hi(t) (d) -j80 (e) 4e-¹4, where f' is frequency in Hz h₂(t) IRA# 5 5. The signal x(t) is a rectangular pulse having an amplitude of I and a pulse width of 0.1 second. The amplitude of the spectrum of x(t-2) at frequency f = 0 Hz is (a) 0 (b) 0.1 (c) 1 (d) 2 (e) none of the above Answer: