1.

The maximum energy in thermal radiation from a source occurs at the wavelength 4000Å. The effective temperature of the source is [AMU (Engg.) 1999]

A. \[7325\,K\]
B. \[80000K\]
C. \[{{10}^{4}}\,K\]
D. \[{{10}^{6}}\,K\]
Answer» B. \[80000K\]


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