PPSC Past Paper ESE General Labour & Human Resource Dept-Afternoon2019 Solved MCQs, Everyday Science MCQs, PPSC Solved Past Papers MCQsThe inner core of an optical fiber is _________ in composition? Posted on April 24, 2021 by Rana TahirA. Glass or Plastic B. Copper C. Bimetallic D. LiquidShare this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window)Click to share on WhatsApp (Opens in new window)Click to share on Pinterest (Opens in new window)Click to share on LinkedIn (Opens in new window)
