A-small-source-of-sound-emit-energy-uniformly-in-all-direction-for-a-particular-frequency-the-intensity-of-sound-at-a-distane-2-0m-from-the-source-is-1-0-10-5-and-corresponds-to-amplitude-o

Question Number 6630 by Tawakalitu. last updated on 06/Jul/16

A s m a l l s o u r c e o f s o u n d e m i t e n e r g y u n i f o r m l y i n a l l

d i r e c t i o n f o r a p a r t i c u l a r f r e q u e n c y, t h e i n t e n s i t y o f s o u n d

a t a d i s t a n e 2.0 m f r o m t h e s o u r c e i s 1.0 \times 10^{- 5} a n d

c o r r e s p o n d s t o a m p l i t u d e o f o s c i l l a t i o n o n t h e a i r m o l e c u l e s

o f 7 u . a s s u m i n g s o u n d i s p r o p a g a t e d w i t h a n y l o s s o f e n e r g y

c a l c u l a t e :

(1) I n t e n s i t y o f s o u n d

(2) t h e a m p l i t u d e o f o s c i l l a t i o n o f t h e a i r m o l e c u l e s

a t a d i s t a n c e o f 5.0 m f r o m t h e s o u r c e .