Letter | Published:

A Simple Result in Quadrature

Nature volume 162, page 215 (07 August 1948) | Download Citation



IN calculating the intensity of light scattered by a transparent homogeneous medium, one comes across the infinite series1in which θ is a constant and n an integer. α is a positive number, which under the conditions under which light-scattering is generally studied is very small, and hence the sum of the above series is usually replaced by the corresponding integral which evidently is equal to π.

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  1. 1.

    , and , Proc. Roy. Soc., A, 192, 181 (1947).

  2. 2.

    See , "Introduction to the Theory of Fourier Integrals", 60 (Oxford, 1937).

  3. 3.

    Bell Tel. Sys. Tech. Pub. Monograph B584 (1931).

  4. 4.

    From , "Collected Papers", 216.

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  1. National Physical Laboratory of India, Delhi. June 6.

    • K. S. KRISHNAN


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