Question

From lyman series of Pfund series, frequency__________

• A. increase
• B. decrease
• C. increase or decrease
• D. no change

Answer 1

The correct option is B decrease

In physics and chemistry the lyman series is a hydrogen spectral series transitions and resulting ultraviolet emission lines of the hydrogen atom as electron goes from $n⩾2ton=1.$

So$,$ lyman series of pfund series$,$ frequency is decrease$.$

hence,

option $\left(B\right)$ is correct answer.