What is the approximate speed of light in a vacuum? 👤 By The Quiz Wire 🌐 Source Physics Knowledge Base ✅ Fact Checked 📊 Difficulty Easy 📅 Last Updated 01 Dec 2025 A. 300,000 km/s B. 30,000 km/s C. 3,000,000 km/s D. 300 km/s Check Answer 💡 Explanation: Light travels at approximately 300,000 kilometers per second in a vacuum. 📚 Topics: Physics Science 🎯 Exams: CSS GEN NTS PMS
