M Mr. Dubey 🎓 Coach ⭐ 103.11K Points 📊 Science Q. What is the working principle of periscope? (A) Refraction (B) Total Internal Reflection (C) Diffraction (D) Reflection 👁️ Show Answer 🔗 Share ⚡Menu ✅ Correct Answer: (D) Reflection You must be Logged in to update hint/solution 💬 Discussion 💬 Comment