350 Image FormationQ36.28You have likely seen a Fresnel mirror for sound.The diagram represents first a side view of a bandshell. It is a concave mirror for sound, designed tochannel sound into a beam toward the audience infront of the band shell. Sections of its surface canbe kept at the right orientations as they are pushedaround inside a rectangular box to form anauditorium with good diffusion of sound fromstage to audience, with a floor plan suggested bythe second part of the diagram.FIG. Q36.28SOLUTIONS TO PROBLEMSSection 36.1Images Formed by Flat MirrorsP36.1I stand 40 cm from my bathroom mirror. I scatter light, which travels to the mirror and back to me in
This is the end of the preview. Sign up
access the rest of the document.
This note was uploaded on 12/14/2011 for the course PHY 203 taught by Professor Staff during the Fall '11 term at Indiana State University .