Physics · Illumination
फ्लोरोसेंट ट्यूब की आंतरिक सतह पर किस पदार्थ का लेप अदृश्य पराबैंगनी (UV) प्रकाश को दृश्यमान प्रकाश में परिवर्तित करता है?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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फॉस्फर (Phosphor) कोटिंग
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