R Ram Sharma 🎓 Coach ⭐ 193.88K Points 📊 General Awareness Q. Who invented Bifocal Lens? (A) Thomas Alva Edison (B) Benjamin Franklin (C) Rudolf Diesel (D) Alfred B. Nobel 👁️ Show Answer 🔗 Share ⚡Menu ✅ Correct Answer: (B) Benjamin Franklin You must be Logged in to update hint/solution 💬 Discussion 💬 Comment