MCQOPTIONS
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| 1. |
The peak wavelength of radiation emitted by a black body at a temperature of 2000 K is 1.45 μm. If the peak wavelength of emitted radiation changes to 2.90 μm, then the temperature (in K) of the black body is |
| A. | 500 |
| B. | 1000 |
| C. | 4000 |
| D. | 8000 |
| Answer» C. 4000 | |