Let F1 be the frequency of second line of Lyman series and F2 be the frequency of first line of Balmer series then frequency of first line of Lyman series is given by

Question

Let F1 be the frequency of second line of Lyman series and F2 be the frequency of first line of Balmer series then frequency of first line of Lyman series is given by (A) F1-F2 (B) F1+F2 (C) F2-F1 (D) (F1 F2/F1+F2)

Tardigrade Admin · Accepted Answer

F1=Rc[(1/n12)-(1/n32)] ...(i) F2=Rc[(1/n22)-(1/n32)] ...(ii) Subtracting (ii) from (i) F=Rc[(1/n12)-(1/n22)] F=F1-F2

Q. Let $F_{1}$ be the frequency of second line of Lyman series and $F_{2}$ be the frequency of first line of Balmer series then frequency of first line of Lyman series is given by

$F_{1} - F_{2}$

$F_{1} + F_{2}$

$F_{2} - F_{1}$

$\frac{F _{1} F _{2}}{F _{1} + F _{2}}$

$F_{1} = R_{c} [\frac{1}{n _{1}^{2}} - \frac{1}{n _{3}^{2}}] ... (i)$
$F_{2} = R_{c} [\frac{1}{n _{2}^{2}} - \frac{1}{n _{3}^{2}}] ... (ii)$
Subtracting (ii) from (i)
$F = R_{c} [\frac{1}{n _{1}^{2}} - \frac{1}{n _{2}^{2}}]$
$F = F_{1} - F_{2}$

Q. Let F1​ be the frequency of second line of Lyman series and F2​ be the frequency of first line of Balmer series then frequency of first line of Lyman series is given by

F1​−F2​

F1​+F2​

F2​−F1​

F1​+F2​F1​F2​​