The value of Stefan’s constant in CGS system is σ=5.67×10-5 erg s-1 cm-2 K-4 . Its value in SI units is ____________.

The value of Stefan's constant in CGS system is σ=5.67×10-5 erg s-1 cm-2 K-4 . Its value in SI units is ____________.

  1. A

    5.67×10-8 J s-1m-2K-4

  2. B

    6.7×10-8 J s-1m-2K-4

  3. C

    5.67×10-5 J s-1m-2K-4

  4. D

    6.7×10-5 J s-1m-2K-4

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    Solution:

    n1u1=n2u2 n1Js-1m-2K-4=5.67×10-5erg s-1cm-2K-4 n1107ergs-110-4cm-2K-4=5.67×10-5erg s-1cm-2K-4 n1 103erg s-1cm-2K-4=5.67×10-5erg s-1cm-2K-4 n1=5.67×10-8

    So,

    σ=5.67×10-8 J s-1m-2K-4

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