R Ravi Chauhan 🎓 Tutor II ⭐ 11.26K Points 📊 Physics Q. Which of the following natural source of gamma-rays? (A) Radio cobalt (B) Radio phosphorus (C) Radon gas (D) Radio carbon 👁️ Show Answer 🔗 Share ⚡Menu ✅ Correct Answer: (C) Radon gas You must be Logged in to update hint/solution 💬 Discussion 💬 Comment