Velocity of Sound | Hello Science | Vikrant Kirar

Light and sound are produced by the burning of crackers. But did you ever question what is sound? How does it propagate? What is it's speed? Why do we see cracker burning before we hear it's sound? Vikrant Kirar is back with fundamental concepts of Sound. The speed of sound is the distance travelled per unit time by a sound wave as it propagates through an elastic medium. Sound speed is given by the formula: Speed= Distance/Time. Sound moves incredibly fast! At sea level, at a temperature of 21 degrees Celsius (70 degrees Fahrenheit) and under normal atmospheric conditions, the speed of sound is 344 m/s (1238 km/h or 770 mph). Stay tuned for more videos. Keep thinking. Happy learning! Vikrant Kirar and other top educators are teaching live on Unacademy. Use code “CRASHUP" or "VIKRANT” to get 10% off on your Unacademy Subscription. Vikrant Kirar's profile- https://unacademy.com/@crashup Crashup Channel Link:    / crashup   Join our Telegram channel: https://t.me/HelloSci Watch the full playlist here -    • Explore Science Definitions | Fun Science ...   Do Subscribe and be a part of the community for more such lessons here:    / @helloscience7438   Unacademy Subscription Benefits: 1. Learn from your favorite teacher 2. Dedicated DOUBT sessions 3. One Subscription, Unlimited Access 4. Real-time interaction with Teachers 5. You can ask doubts in a live class 6. Limited students 7. Download the videos & watch offline #IITJEE #HelloScience