P Praveen Singh 🎓 Tutor III ⭐ 36.81K Points 📊 Physics Q. Who had invented wireless telegraph? (A) Alfred Noble (B) Waterman (C) J L Baird (D) Marconi 👁️ Show Answer 🔗 Share ⚡Menu ✅ Correct Answer: (D) Marconi You must be Logged in to update hint/solution 💬 Discussion 💬 Comment