Sound & light wave quessy?

Question

Why can we here a band playing before we actually see them march around the corner into our line of sight?

Answer 1

its because sound propogate through the solid optically opaque substances and light waves do not; so u r unable to see through a wall but u can hear thru it(unless u r superman :-) ) U can see sound from any direction whereas u can only see things in front of ur eyes.
hope i helped if i did plz give best answer

Answer 2

Due to something called impedance mismatch, sound energy rarely travels through buildings. That results because the sound energy is dampened out by the structures.

What really allows you to hear the bands before they round the corner is that sound propagates as though the wave fronts were wavelets of sound. [See "Through the Rabbit Hole in the cited source.] Thus, when a wave front reaches the corner of the building, the wavelets on that front spread out in all directions from that wave front. And some of that "all directions" is sideways along the front of the building on the cross street (where you are standing while hearing the band coming).

You actually answered your own question re light. You mentioned "line of sight." That really is a straight line and you can't see the band because the buildings are on that line between you and the band.

Answer 3

Both the motion of sound and the motion of light patricle move in a oscilliatory manner but not the same way. Both Sound and Light is either absorbed or reflected.
The Reason you know there is a band moving next block even though they are not visible ,is becaue of the sound signals which are giving you information how far they could be by the volume of sound wave.
Sound moves differently then light.The oscilliaory motion is similar to the motion of electrons in a wire which is by power transfer of electron to electron collision . The same scenario applies to sound except power transfer occurs by molecule to molecule collison irrespective of the State of the mass substance of the material the molecule exist as. The velocity of sound depends on the temperature and density of the mediun its traveling in.

The motion of light is more complicated . Even though it follows the rules of wave motion it is not a wave. Light moves as a flux of micromasses. And Because light is massive it can bounce off(reflects ) other mass structures or gets absorbed into atomic structure..
Basically , by itself light is invisible, unless the micromass flux collides with your eye mechanism to give information on the shapes and colors of your surroundings.
Light particles as a radiation can penetrate solids depending on the nature of the solid and the power of the radiation.