Saved Bookmarks
| 1. |
The spectrum of a black body at two temperatures `27^(@)C` and `327^(@)C` is shown in the figure. Let `A_(1)` and `A_(2)` be the areas under the two curves respectively. Find the value of `(A_(2))/(A_(1))` A. `16:1`B. `8:1`C. `9:4`D. `16:9` |
|
Answer» Correct Answer - A Area under given curce represents emissive power and wmmissive power `prop T^(4) impliesA prop T^(4)` `implies(A_(2))/(A_(1))=(T_(2)^(4))/( T_(1)^(2))=((273 +327)^(4))/((273 +27)4)=((600)/(300))^(4) =(16)/(1)` |
|