Science · General Science
तापदीप्त बल्ब का आविष्कार किसने किया?
- 1विलियम हेनरी बैग
- 2एलन एम. ट्यूरिंग
- 3एस. चंद्रशेखर
- 4जे. ई. फ्लेमिंग✓
सही उत्तर देखें
जे. ई. फ्लेमिंग
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