MCQOPTIONS
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MCQOPTIONS
| 1. |
A rectangular metal plate 8 cm × 4 cm at 127°C emits E J/s. If both the length and breadth are halved and the temperature is raised to 327°C, the rate of emission is (J/s) |
| A. | \(\frac{27}{8}E\) |
| B. | \(\frac{81}{64} E\) |
| C. | \(\frac{10}{9} E\) |
| D. | \(\frac{9}{4} E\) |
| Answer» C. \(\frac{10}{9} E\) | |