 
			 
			MCQOPTIONS
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				| 1. | A bulb of 100 W capacity was switched on in a thermally insulated room of size (2.5 × 3 × 3) m3 and temperature 20°C. Find the temperature of the room at the end of 24 hours. | 
| A. | 450 °C | 
| B. | 47 °C | 
| C. | 470 °C | 
| D. | 4700 °C | 
| Answer» D. 4700 °C | |