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1. |
A 200 W electric bulb was switched on in a 5 × 6 × 6 meter size thermally insulated room having a temperature of 50°C. The room temperature at the end of 24 hours will be |
A. | 145°C |
B. | 181.5°C |
C. | 135°C |
D. | 161.5°C |
Answer» E. | |