91. The region of convergence of the z-transform of a unit step function is
92. The region of convergence of the z-transform of a unit step function is
93. Poles of Butterworth and Chebyshev low pass filters are located on . . . . . . . . and . . . . . . . . respectively in s-plane.
94. Let function A = sinω0t and B = sin(ω0t + φ). The power of two signals; PA and PB is related as
95. Match List-I with List-II and select the correct answer using the options given below:
List-I (Time Function)
List-II (Fourier Spectrum/Fourier Transform)
a. Periodic Function
1. Continuous spectrum at all frequencies
b. Aperiodic Function
2. -jπ{δ(ω - ω0) - δ(ω + ω0)}
c. Unit Impulse δ(t)
3. Line discrete spectrum
d. sin ω(t)
4. 1
| List-I (Time Function) | List-II (Fourier Spectrum/Fourier Transform) |
| a. Periodic Function | 1. Continuous spectrum at all frequencies |
| b. Aperiodic Function | 2. -jπ{δ(ω - ω0) - δ(ω + ω0)} |
| c. Unit Impulse δ(t) | 3. Line discrete spectrum |
| d. sin ω(t) | 4. 1 |
96. Which of the following is introduced in the frequency sampling realization of the FIR filter?
97. The convolution of f(t) with itself is given to be $$\int_0^t {f\left( \tau \right)d\tau .} $$ Then what is f(t)?
98. If x[n] = -x[-n], then
99. A signal x(t) is band-limited to 2Hz, and y(t) = x3(t) + x(t) + 1. The Nyquist sampling frequency of y(t) is:
100. The output of a system with impulse response δ[n - 2] to an input signal, u[n + 2] is:
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