cse • paper_1 • waves_oscillationscse-2024-subject-02-007
Laser light — UPSC CSE 2024 Physics PYQ
Buy PYQ Solution Manual →Consider a 10\text{ mW} laser beam passing through a 50\text{ km} fiber link of attenuation 0.5\text{ dB/km}. Calculate the power of the laser at the end of the link.
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