Practicing Success

Target Exam

CUET

Subject

Physics

Chapter

Atoms

Question:

Options:

a

b

c

d

Correct Answer:

b

Explanation:

For lymen series first line corresponds to transition bentween n =1 to n = 2 

its wavelength is $\lambda = \frac{4}{3R}$

For Balmer series first line corresponds to transition bentween n =2 to n = 3 

its wavelength is $\lambda = \frac{36}{5R}$

Ratio of wavelength = 5:27