MCQOPTIONS
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| 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. \[80000K\] | |