Mathematics · Illumination Engineering
Fluorescent lamps achieve higher luminous efficiency and eliminate flicker when operated at:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1High frequencies (e.g., above 20 kHz) using electronic ballasts✓
- 2Lower than standard grid supply frequencies
- 3Standard grid supply frequency (50 Hz / 60 Hz) only
- 4Direct current (DC) constant voltage only
Correct answer
High frequencies (e.g., above 20 kHz) using electronic ballasts
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