wiz-icon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

What electronic transition in the He+ spectrum would have the same wavelength as the first Lymen transition of hydrogen:-

A
n = 4 to n = 2
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
B
n = 1 to n = 4
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
n = 4 to n = 3
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
n = 3 to n = 4
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

The correct option is A n = 4 to n = 2
The first Lymen transition of hydrogen
1λH=R(1)2[112122] &
For He+, 1λ+He=R(2)2[1n211n22]
But λH=λ+He [as given in question]
From above equations n1=2 & n2=4

flag
Suggest Corrections
thumbs-up
1
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Emission and Absorption Spectra
CHEMISTRY
Watch in App
Join BYJU'S Learning Program
CrossIcon