Bowwow!!

Classical Mechanics Level 2

A dog and its owner are in an ellipse shaped room as above. When the dog barks at one of the focal points of the ellipse(A), the sound the owner hears is louder at the other focal point(B) than at the center(O) of the ellipse. Which of the following properties of sound can explain this phenomenon?

refraction interference reflection diffraction

View wiki
Lakshan Dumpa by Lakshan Dumpa , 24, India

This section requires Javascript.
You are seeing this because something didn't load right. We suggest you, (a) try refreshing the page, (b) enabling javascript if it is disabled on your browser and, finally, (c) loading the non-javascript version of this page . We're sorry about the hassle.

1 solution

Rashi Rkg
Mar 12, 2014

At the focal point, the sound heard is more 'cause of superposition of the reflected sound waves from the elliptical room's wall and the original sound waves.

2 Helpful 0 Interesting 0 Brilliant 0 Confused

I don't quite agree.. Its a combination of reflection and interference. At the focus these waves interfere constructively because the length of all paths is same!

Snehal Shekatkar - 7 years, 3 months ago

Log in to reply

exactly!

Abhishek Singh - 7 years, 2 months ago

Without interference no sound can be heard louder whatever the reflection or other issue happen. So how the answer can be reflection I don't understand. Here of course occurs reflection but interference is the main reason for which amplitude of a sound can be greater as a result louder sound.

নিটুল হালদার - 7 years, 2 months ago

0 pending reports

×

Problem Loading...

Note Loading...

Set Loading...