Question

The ratio of minimum to maximum wavelength in Balmer series is ____________.

विकल्प

• 5 : 9

• 5 : 36

• 1 : 4

• 3 : 4

Answer 1

The ratio of minimum to maximum wavelength in Balmer series is 5 : 9.

Explanation:

`1/lamda= R_H [1/"n"_1^2-1/"n"_2^2]`

⇒ `lamda_min/lamda_max`= `([1/2^2 - 1/3^2])/ [1/2^2 - 1/infty]`

= `5/9`