Solve the following, if a television signal (video and audio) has a bandwidth of 4.5MHz, this signal is sampled, quantized, and binary coded to obtain a PCM signal.                                I.   If the signal is to be sampled at a rate 30% above the Nyquist rate, then sampling rate? II. If the samples are quantized into 2048 levels, determine the number of binary pulses required to encode each sample. III. Determine the binary pulse rate (bits per second) of the binary-coded signal. IV. Minimum bandwidth required to transmit this signal.   V. Find the channel capacity using Nyquist rule. VI. Find the SNR using Shannon rule.

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Wien's displacement law

Students often get confused between Wien's displacement law and Planck's radiation law. Although both are historically related, yet they are conceptually different. Planck's law helps determine the spectrum of a blackbody, while Wien's law determines the relationship between peak wavelength and temperature.