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Grade 12th PassWave Motion

Equation of spherical plane progressive wave is

(A) y= asin wt

(B) y a sin(wt-kr)

(C) y= a/√2 sin(wt- kr)

(D) y=a/r sin(wt-kr)

EXPLAIN PLS...

Profile image of Aditi Bhatnagar
14 Years agoGrade 12th Pass
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1 Answer

Profile image of Kumar Abhisar
10 Years ago
In a spherical progressive wave, amplitude is inversly proportional to distance r. Therefore amplitude (a) in this case equals to c/r where c is some constant.
 
\(\therefore y=\frac{c}{r}Sin(wt-kr)\)