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

Find the maximum kinetic energy of the photoelectrons ejected when light of wavelength 350 nm is incident on a cesium surface. Work function of cesium = 1.9 eV.

Open in App
Solution

Here

λ=350 nm

=350×105m,

Φ=1.9 eV

Max. KE of electrons

=hcλΦ

=6.63×1034×3×108350×109×1.6×10191.9

=6.63×3×102350×1.61.9

=1.65 eV=1.6 eV


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