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

The radius of the first Bohrs orbit in H-atoms is r1. The corresponding wavelength of an electron in 2nd orbit is:

A
6πr1
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
4πr1
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
C
2πr1
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
3πr1
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

The correct option is C 4πr1
mv2r=ze2r2
r=m2v2r2ze2m=(mvr)2ze2m
mvr=nh2π
mvr1=n2π=h
mvr2=2h
r1=h2ze2m
r2=4h2ze2m
r2=4r1
So wave length corresponding to 2nd Bohr orbit =2πr2n
n=2
=4πr1

flag
Suggest Corrections
thumbs-up
0
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Bohr's Model of a Hydrogen Atom
CHEMISTRY
Watch in App
Join BYJU'S Learning Program
CrossIcon