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Standard XII
Physics
Question

A digital signal
  1. is more reliable than analog signal
  2. Not at all reliable
  3. is less reliable than analog signal
  4. is equally reliable as the analog signal

A
is more reliable than analog signal
B
is less reliable than analog signal
C
Not at all reliable
D
is equally reliable as the analog signal
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Solution
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Noise is added to digital signal also but its easier to remove the noise and amplify the digital signals as compared to analog signals, because analog signals contain many frequencies.

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