7. If I have a signal y(t)=sin(4000nt) and I pass thru a sampling circuit with a sampling rate 1000 samples/s, what does the signal look like? A. A discrete signal with 1 sample per 1ms undistorted B. A discrete signal with 1 sample per 1ms distorted C. A discrete signal undistorted that for every second there is 1000 samples D. none of the above

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Please assist with question 1 and why its true or false. Thank you.

Q4. The signal x(t) given by, x(t) = 1+2 sin(80nt) + 1.5 cos(300nt) + 0.5 cos(375t) + 0.7sin (815at) is applied to the following system LPF ADC Digital x(t) Fc=400 Hz FSAM? Processor a. Find the minimum sampling frequency that can be used by the Analog to Digital Converter, ADC, given that the Low Pass Filter, LPF, is ideal. Justify your answer. b. Each sample is then quantized (“measured") by comparing the amplitude of each sample to a standard set of 1024 levels. Determine the total number of bits generated in a six-minute interval. c. If the range of the ADC is ± 5 V, detrmine its resolution, A, and it's quantization error.