Question:
Only 2% of the optical source frequency is the available channel bandwidth for an optical communicating system operating at 1000 nm. If an audio signal requires a bandwidth of 8 kHz, how many channels can be accommodated for transmission?
Only 2% of the optical source frequency is the available channel bandwidth for an optical communicating system operating at 1000 nm. If an audio signal requires a bandwidth of 8 kHz, how many channels can be accommodated for transmission?
Updated On: Mar 19, 2025
- 375 × 107
- 75 × 107
- 375 × 108
- 75 × 109
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The Correct Option is B
Solution and Explanation
The correct option is(B): 75 × 107
\(v=fλ\)
⇒ Channels
\(\frac{\frac{2}{100}×3×10^{14}}{8×10^3}=75×10^7\)
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Optical instruments
A device that processes light waves (or photons), either to enhance an image for viewing or to analyze and determine its characteristic properties is called an optical instrument (or "optic" for short).
Applications of Optical Instruments:
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