Science
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 the air and in aluminium to reach the second child.
Related Questions
Flash and thunder are produced simultaneously. But thunder is heard a few seconds after the flash is seen. Why?
A person has a hearing range from 20 Hz to 20 kHz. What are the typical wavelengths of sound waves in air corresponding to these two frequencies? Take the speed of sound in air as 344 ms-1.
The frequency of a source of sound is 100 Hz. How many times does it vibrate in a minute?
Does sound follow the same laws of reflection as light does? Explain.