Question
ट्रायोड बल्ब की खोज डॉ. ली. डी. फॉरेस्ट ने कब की थी?
Answer
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Hinglish Excerpt
triode bulb Ki Khoj Dr. Lee D. Forest ne Kab Ki Thi?
Tags: ट्रायोड बल्ब की खोजडॉ. ली. डी. फोरेस्ट
Subjects: Current AffairsGeneral Knowledge
Exams: UPSCUPPCSSSCRRBIBPSSBIRBICTETAFCATUGC NETDefence/PoliceUPPCLCourt/LegalOthers
