Question

In an experiment, Anhad studies sound waves. He sets up a loudspeaker to produce sound as shown below:



Anhad adjusts the signal to the loudspeaker to give a sound of frequency 200 Hz.
(a) What happens to the air in-between Anhad and the loudspeaker?
(b) Explain how Anhad receives sound in both ears.

Answer 1

(a) When Anhad adjusts the signal to the loudspeaker to give a sound of frequency 200 Hz then the air between Anhad and the loudspeaker starts vibrating with the frequency of 200 Hz.

(b) Both the ear of Anhad receive the sound. His right ear receives the sound waves coming directly from the loudspeaker whereas his left ear receives the reflected sound waves from the wall of the classroom.