MCQOPTIONS
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| 1. |
A thin square steel plate with each side equal to 10 cm is heated by a blacksmith. The rate of radiated energy by the heated plate is 1134 W. The temperature of the hot steel plate is (Stefan's constant \[\sigma =5.67\times {{10}^{-8}}watt\ {{m}^{-2}}{{K}^{-4}}\], emissivity of the plate = 1) [MP PMT 1995] |
| A. | \[1000\ K\] |
| B. | \[1189\ K\] |
| C. | \[2000\ K\] |
| D. | \[2378\ K\] |
| Answer» C. \[2000\ K\] | |