Question

sexter
on substituting all values, we get ( v=3 cdot 09 times 10^{6} mathrm{m} / mathrm{s} )
On soluing oftion ( (c) ) from question
( 2 cdot 18 sqrt{2} times 10^{6} mathrm{m} / mathrm{s}=3.0829 times 10^{6} mathrm{m} / mathrm{s} )
( therefore ) Ans in option (c)

# Electromagnetic radiations having a =310 Å are subjected to a metal sheet having work function = 12.8 eV. What will be the velocity of photoelectrons with maximum Kinetic Energy.. (A) 0, no emission will occur (B) 2.18 * 106 m/s (C) 2.182 106 m/s (D) 8.72 x 106 m/s

Solution