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

If the work function of a potential is 6.875eV, its threshold wavelength will be (Take =c=3×103m/s).

A
3600oA
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
2400oA
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
1800oA
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
D
1200oA
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

The correct option is B 1800oA
W=hcλ
where h is planck's constant, c is speed of light, λ is wavelength
λ=hcW=6.6×1034×3×1086.825×1.6×1019
λ=1800oA.

flag
Suggest Corrections
thumbs-up
0
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Work Function
PHYSICS
Watch in App
Join BYJU'S Learning Program
CrossIcon