Loud speaker voice is increase due to ___

A. High energy

B. High frequency

C. Spectrum technology
D. None of these

Occurrence: PPSC - Junior Clerk - Punjab Police Department - 2022

Loud speaker voice is increase due to ___ | High frequency | CSS, PMS, PPSC, FPSC, KPPSC, SPSC, ISSB and NTS Past Papers | Pakistan's Largest Online Past Papers Database

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