IGCSE/GCSE/O & A Level/IB/University Student Forum

Qualification => Subject Doubts => GCE AS & A2 Level => Sciences => Topic started by: astarmathsandphysics on May 16, 2010, 08:04:37 pm

Title: path difference and speed of wave
Post by: astarmathsandphysics on May 16, 2010, 08:04:37 pm

Sound from a small loudspeaker L reaches a point P by two paths which differ in length by 1.2m. When the frequency of the sound is gradually increased, the resultant intensity at P goes through a series of maxima and minima. A maximum occurs when the frequency is 1000 Hz and the next maximum occurs at 1200 Hz. What is the speed of sound in the medium between L and P?

A   200
B   240
C   480
D   1200
E   1400
Then 1.2 =1/4 of

see attached doc

Title: Re: path difference and speed of wave
Post by: AN10 on May 16, 2010, 08:11:30 pm

Thank u so much. :)