Question

Calculate the wavelength of the Balmer line corresponding to n2=4.

Answer 1

Answer:

n1=2 n2=4

then

1/lambda=R(1 /n1^2-1/n2^2)

1/lambda=R(1/4-1/16)

1/lambda=R(4-1/16)

1/lambda=3R/16

lambda= 16/3R

lambda=16/3.291×10^7

lambda=4.8×10^-7

Explanation:

R=1.097×10^7