MCQOPTIONS
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MCQOPTIONS
| 1. |
The energy spectrum of a black body exhibits a maximum around a wavelength \[{{\lambda }_{o}}.\] The temperature of the black body is now changed such that the energy is maximum around a wavelength \[\frac{3{{\lambda }_{o}}}{4}\].The power radiated by the black body will now increase by a factor of [KCET 2002] |
| A. | 256/81 |
| B. | 64/27 |
| C. | 16/9 |
| D. | 4/3 |
| Answer» B. 64/27 | |