1.

Unit of Stefan's constant is [MP PMT 1989]

A. \[J\,{{s}^{-1}}\]
B. \[J\,{{m}^{-2}}{{s}^{-1}}{{K}^{-4}}\]
C. \[J\,{{m}^{-2}}\]
D. \[J\,s\]
Answer» C. \[J\,{{m}^{-2}}\]


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