Integral Value Calculation: Physics Problem Solving

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SUMMARY

The integral from 0 to infinity of (sin(kr)/r^3) dr does not converge, resulting in an infinite value. The discussion clarifies that only the integral of sin(kr)/r is solvable in this context. This integral typically arises in physics when integrating over all space in spherical coordinates, which includes a Jacobian factor of r^2 sin(theta). Understanding these concepts is crucial for accurate calculations in physics problems involving spherical symmetry.

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  • Understanding of integral calculus, specifically improper integrals.
  • Familiarity with spherical coordinates and Jacobian transformations.
  • Knowledge of the sine integral function and its properties.
  • Basic concepts of convergence in mathematical analysis.
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Hi all while solving a problem of physics i came across integral (from 0 to infinity) of (sinkr/r3) dr.What is the value of this integral and how to calculate it. Please help me
Thanks
 
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The "value" of the integral is infinity, a.k.a. it does not converge.
Only for sin(kr)/r one can do the integration. Are you sure this is not what you meant? It looks like the typical integral coming from an integration over all space in spherical coordinates, which also introduces a Jacobian of r^2 sin(theta).
 

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