

MCQOPTIONS
Saved Bookmarks
1. |
A black body is at a temperature of 2880 K. The energy of radiation emitted by this object with wavelength between 499 nm and 500 nm is \[{{U}_{1}}\] between 999 nm and 1000 nm is \[{{\operatorname{U}}_{2}}\] and between 1499 nm and 1500 nm is \[{{\operatorname{U}}_{3}}\] Wien's constant \[\operatorname{b}=2.88\times {{10}^{6}}nm-K\]. Then |
A. | \[{{\operatorname{U}}_{1}}=0\] |
B. | \[{{\operatorname{U}}_{2}}=0\] |
C. | \[{{\operatorname{U}}_{1}}={{U}_{2}}\] |
D. | \[{{\operatorname{U}}_{2}}>{{U}_{1}}\] |
Answer» E. | |