Question

ratio of the wavenumber of the first line of lumen series of hydrogen atom to the first line of balmer series of he+ ion will be​

Answer 1

Answer:

ANSWER

Wavelength is given by

λ

1

=RZ

2

[

n

1

2

1

−

n

2

2

1

]

For first line of Lyman series, n

1

=1 and n

2

=2

λ

1

=RZ

2

[

1

2

1

−

2

2

1

]

λ

1

=RZ

2

×

4

3

λ∝

Z

2

1

λ

H

2

λ

Li

2+

=

Z

Li

2+

2

Z

H

2

2

=

3

2

1

=

9

1