Question

hi all

If λD and λα be the wavelength of first Balmer line of deuterium and hydrogen respectively, then p Ο λD= λΗ Ο λD= 2λΗ Ο λD < λΗ Ο λD> λΗ​​

Answer 1

Answer:

According to Bohr model,

λ1=vˉ=RH⋅Z2[n121−n221]

As n1  and n2 are same for both and 

RH for D=109708 cm−1 and RH for H=109678 cm−1.

So, λ1<λ2

Hii sis