1.

First line of Paschen series has wave number (R_(H)=109700//cm)

Answer»

`2854xx10^(8)(Å)^(-1)`
`6243xx10^(8)(Å)^(-1)`
`6856xx10^(8)(Å)^(-1)`
`3452xx10^(8)(Å)^(-1)`

SOLUTION :`n_(l)=3 n_(F)=4`
`1/lambda=109677[1/n_(i)^(2)-1/n_(f)^(2)]=6856xx10^(8)(Å)^(-1)`


Discussion

No Comment Found