Q55 of 199 Page 207

Why are the ceilings of concert halls made curved? Draw a labelled diagram to illustrate your answer.

TO make the sound audiable to every person sitting in the hall it is nessecary to make the cilings of the hall curved in shape, so that it reflect all the sound waves informaly.


More from this chapter

All 199 →
53

Explain how, bats use ultrasound to catch the prey.

 54

Explain how, flaws (or defects) in a metal block can be detected by using ultrasound.

 56

Draw a labelled diagram to show the multiple reflections of sound in apart of the stethoscope tube.

 57

What is the range of frequencies associated with

(a) infrasound


(b) audible sound, and range of the frequeny