Flash and thunder are produced simultaneously. But thunder is heard a few seconds after the flash is seen, why?
Two children are at opposite ends of an aluminium rod. One strikes the end of the rod with a stone. Find the ratio of times taken by the sound wave in air and in aluminium to reach the second child.
A stone is dropped from the top of a tower 500 m high into a pond of water at the base of the tower. When is the splash heard at the top? Given, g = 10 m s−2 and speed of sound = 340 m s−1.
In which of the three media, air, water or iron, does sound travel the fastest at a particular temperature?
- Science Textbook for Class 9