![a) What is an echo?(b) How is an echo different from a reverberation?(c) Describe an activity to demonstrate that sound follows the same laws of reflection as light. a) What is an echo?(b) How is an echo different from a reverberation?(c) Describe an activity to demonstrate that sound follows the same laws of reflection as light.](https://haygot.s3.amazonaws.com/questions/1607662_1774673_ans_5eaa0170091846059204af964d9e71e5.jpg)
a) What is an echo?(b) How is an echo different from a reverberation?(c) Describe an activity to demonstrate that sound follows the same laws of reflection as light.
![Reflection of sound and echo | CBSE 9 | SSC 9 | Science | Why Do We Hear Echoes? | Home Revise - YouTube Reflection of sound and echo | CBSE 9 | SSC 9 | Science | Why Do We Hear Echoes? | Home Revise - YouTube](https://i.ytimg.com/vi/nkpvTcTcWDM/maxresdefault.jpg)
Reflection of sound and echo | CBSE 9 | SSC 9 | Science | Why Do We Hear Echoes? | Home Revise - YouTube
![An echo returned in 3 s what is the distance of the reflecting surface from the source, given that the speed of the sound is 342m/s An echo returned in 3 s what is the distance of the reflecting surface from the source, given that the speed of the sound is 342m/s](https://d10lpgp6xz60nq.cloudfront.net/web-thumb/645002843_web.png)
An echo returned in 3 s what is the distance of the reflecting surface from the source, given that the speed of the sound is 342m/s
![What is an Echo? How to prevent it? What Causes Echoes at Home? - False Ceiling Manufacturer Company What is an Echo? How to prevent it? What Causes Echoes at Home? - False Ceiling Manufacturer Company](https://cdn-cdokm.nitrocdn.com/dhkIZvVYheAZpjiDCSeXvOelebcslrtM/assets/static/optimized/rev-dfc855c/wp-content/uploads/strikingr/images/6801_GetPaidStock.com-61fa26ee11c12-628x250.jpg)