Quiz: UPPSC Prelims 2019 (GS Paper I)

Category: UP PSC (PCS)

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Question 55 of 149

UPPSC Prelims 2019 (GS Paper I)
36%

The phenomenon used in optical fibre for transmission of light energy is

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23 Aug 2025 ยท 18 Oct 2025

This MCQ is part of the UP PSC Previous Year Questions (PYQs) series, focusing on UPPSC Prelims 2019 (GS Paper I)

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