MCQOPTIONS
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| 1. |
A black body is at a temperature of \[2880\ K\]. The energy of radiation emitted by this object with wavelength between \[499\ nm\] and \[500\ nm\] is \[{{U}_{1}}\], between \[999\ nm\] and \[1000\ nm\] is \[{{U}_{2}}\] and between \[1499\ nm\] and \[1500\ nm\] is \[{{U}_{3}}\]. The Wein's constant\[b=2.88\times {{10}^{6}}\ nm\,K\]. Then [IIT 1998] |
| A. | \[{{U}_{1}}=0\] |
| B. | \[{{U}_{3}}=0\] |
| C. | \[{{U}_{1}}>{{U}_{2}}\] |
| D. | \[{{U}_{2}}>{{U}_{1}}\] |
| Answer» E. | |