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Which one of the following statements is/are incorrect regarding waves? (A) wave height is not indicator of wave energy (B) wave height is controlled by wind strength (C) the distance of open water a wave travels over affects the wave height (D) the depth of the sea is important factors affecting wave height Choose the most appropriate answer from the options given below:
Many wave properties are dependent upon other wave properties. Yet, one wave property is independent of all other wave properties. Which one of the following properties of a wave is independent of all the others?
WAVE PCM is not supported by _________
State whether the following statement is true or false regarding PCM. “In PCM, etching depth does not depend on the time, a component is immersed in the chemical solution.”
Which of the following statements are true in the case of Pulse Code Modulation (PCM)? a) If the number of bits per sample is increased from n to n + 1; the S/Nq the ratio would be 6 dB b) The quantization noise depends on the sampling rate c) The main advantage of PCM is that it possesses better performance in the presence of noise d) If the number of quantization levels increases from 4 to 64, the bandwidth increase by a factor of 4
What is the required bandwidth of the PCM system for 256 quantization levels when 48 telephone channels, each bandlimited to 4 kHz, are to be time-division multiplexed by this PCM?
Companding is used in PCM transmitters to overcome quantizing noise in PCM.
State whether the following statement is true or false about applications of PCM. “Using PCM, very high tempered materials are machined easily.”
State whether the following statement is true or false regarding advantages of PCM. “In PCM, lead times are large, when compared to that required for hard tooling using traditional means.”
When the crest of one wave falls on the crest of the second wave, and trough of one wave falls on the trough of the second wave, this phenomenon is called