In Figure OQ18.1 (page 556), a sound wave of wavelength0.8 m divides into two equal
Chapter 18, Problem 1(choose chapter or problem)
In Figure OQ18.1 (page 556), a sound wave of wavelength0.8 m divides into two equal parts that recombineto interfere constructively, with the original differencebetween their path lengths being |r2 2 r1| 5 0.8 m. Rank the following situations according to the intensityof sound at the receiver from the highest to the lowest.Assume the tube walls absorb no sound energy. Giveequal ranks to situations in which the intensity is equal. (a) From its originalposition, the slidingsection is moved out by0.1 m. (b) Next it slidesout an additional 0.1 m.(c) It slides out stillanother 0.1 m. (d) Itslides out 0.1 m more.
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