Observing the Effects of Sound Wave Diffraction: A Demonstration Experiment

[Faiq]

Homework Statement

Write an experiment to demonstrate the diffraction of a sound wave and specify what has to observe to conclude that wave has been diffracted

Homework Equations

The Attempt at a Solution

I know that we've to create diffraction by using a speaker and a slit and a microphone connected to a cro. I don't know what is changed after the wave has been diffracted so we can conclude that wave has been diffracted

 

[tech99]

If there was no diffraction, the sound might emerge from the slit as a parallel beam. But it doesn't.

 

[berkeman]

Homework Statement

Write an experiment to demonstrate the diffraction of a sound wave and specify what has to observe to conclude that wave has been diffracted

Homework Equations

The Attempt at a Solution

I know that we've to create diffraction by using a speaker and a slit and a microphone connected to a cro. I don't know what is changed after the wave has been diffracted so we can conclude that wave has been diffracted

Hint -- are you familiar with what happens in multiple-slit experiments (with light or sound or other waves)?

http://sciencevault.net/11hscphys/82worldcommunicates/822 Sound.htm

 

[Faiq]

I know all the theory but I am asking what results should I portray so I can conclude to an another person the wave has diffracted