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PPSC Past Paper 2026 (Computer Operator)
PPSC · 2025 · Practice with instant answers and explanations
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100 Past Paper MCQs
Question 91 of 100
91%
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00:00
Question
91
Past Paper
PPSC
Loss of light strength as it travels through optical fibre is called:
A
Refraction
B
Attenuation
C
Dispersion
D
Reflection
Correct Answer:
Option B — Attenuation
Explanation:
Attenuation is the gradual reduction of optical signal power along a fibre.
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