Saved Bookmarks
| 1. |
Let `v_(1)` be the frequency of series limit of Lyman series, `v_(2)` the frequency of the first line of Lyman series and `v_(3)` the frequency of series limit of Balmer series. Then which of the following is correct ?A. `v_(1)-v_(2)=v_(3)`B. `v_(1)+v_(3)=v_(2)`C. `v_(1)+v_(2)=v_(3)`D. `v_(1)-v_(3)=2v_(1)` |
|
Answer» Correct Answer - A `V=nlambda (1)/(lambda)=n/V` `1/lambda=R((1)/(P^(2))-(1)/(n^(2)))` `v=Rc ((1)/(P^(2))-(1)/(n^(2)))` `v=Rc ((1)/(P^(2))-1/(n^(2)))" series limit n"=oo` `v_(2)=Rc ((1)/(2^(2))-(1)/(3^(2)))=Rc=((1)/(4)-(1)/(9))` `v_(1)=Rc((1)/(2^(2))=(Rc)/(4))` `v_(3)=Rc((1)/(3^(2))=(Rc)/(9))` `therefore v_(1)-v_(3)=Rc((1)/(4)-(1)/(9))` `therefore v_1-v_3=v_2` `therefore v_1-v_2=v_3`. |
|