Q. 73 A speed signal, band limited to 4 kHz and peak voltage varying between +5 V and -5 V, is sampled at the Nyquist rate. Each sample is quantized and represented by 8 bits.
The number of quantization levels required to reduce the quantization noise by a factor of 4 wo
(A) 1024
(B) 512
(C) 256
(D) 64
Answer: B
Explanation:
