Electronmagnetic radiations having lambd...

Electronmagnetic radiations having `lambda=310Å`are subjected to a metal sheet having work function `=12.8eV`. What will be the velocity of photoelectrons with maximum Kinetic Energy….

0, no emission will occur

`2.18 xx 10^(6) m//s`

`2.18 sqrt2 xx 10 ^(6) m//s`

`8. 72 xx 10 ^(6) m//s `

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