Answer the following
1. What is an echo?what factors are important to get a echo?
Answers
Answer:
The repetition of sound caused by its reflection of a hard surface is known as echo. Factors important to get a distinct echo are: The minimum distance between the source and reflector of sound should be 17m. The size of reflector must be large enough as compared to the wavelength of the sound wave
Answer:
The repetition of sound caused by its reflection of a hard surface is known as echo. Factors important to get a distinct echo are: The minimum distance between the source and reflector of sound should be 17m. The size of reflector must be large enough as compared to the wavelength of the sound wave.
The distance between the sound source and the reflecting surface must not be less than 17 metres where the time period between hearing the original sound and its echo should not be less than 0.1 of a second .