write a sort note on echo
Answers
Answered by
5
Answer:
he repetition of sound caused by reflection of sound waves from an obstacle is known as an echo. The sensation of sound persists in our brain for about 0.1 s. To hear a distinct echo, the time interval between the original and reflected sound must be at least 0.1 s.
Answered by
2
Answer:
The repetition of sound caused by reflection of sound waves from an obstacle is known as an echo. The sensation of sound persists in our brain for about 0.1 s. ... Thus, for hearing distinct echoes, the minimum distance of the obstacle from the source of sound must be 17.2 m.
Explanation:
Similar questions