______ is an example of analog signal and ______ is an example of digital…
2023
______ is an example of analog signal and ______ is an example of digital signal, respectively.
Answer: A. Smell, scanning — Explanation An Analog signal varies continuously and can take any value in a range. A Digital signal has discrete (separate) values, usually in binary (0s and…
- A.
Smell, scanning
- B.
Scanning, smell
- C.
Smell, speech
- D.
Word document, speech
- E.
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Correct answer: A
Explanation
An Analog signal varies continuously and can take any value in a range.
A Digital signal has discrete (separate) values, usually in binary (0s and 1s).
Understanding the examples
Smell → Analog
The intensity of smell varies continuously (no fixed steps), so it behaves like an analog signal.
Scanning → Digital
Scanning converts images/text into digital data (pixels, bits).