Question

determine the series limit of balmer paschen and pfund series given the limit for lyman series is 912 A

Answer 1

Answer:

Series Limit of Balmer series

n=1

λ

1

=R(

n

2

1

)=R

Given:

R

1

=912A

Series Limit of Balmer series

n=2

λ

1

=R(

n

2

1

)=

4

R

λ=

R

4

=4×912

A

˚

=3648

A

˚

solution

Answer 2

Answer:

Formula :

1/ lamda = R [ 1 / n^2 - 1 / m^2 ]

For Balmer Series: n= 2 &

m= infinity (series limit)

For Paschen Series: n= 3 &

m= infinity (series limit)

For Pfund Series: n= 5 &

m= infinity (series limit)

R (Rydberg's Constant ) =

$1.097 \times 10 ^{10}$

Hope This Helps

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