Write five different sounds which you hear in a day?
During the daytime, we come across many sounds, some of which are:
When a sound is reflected from a distant object, an echo is produced. Let the distance between the reflecting surface and the source of sound production remains the same. Do you hear echo sound on a hotter day?
A man X can hear only upto 10 kHz and another man Y upto 20 kHz. A note of frequency 500 Hz is produced before them from a stretched string. Then