Jee Main
Structure Of Atom
JEE Main 2021 (Online) 26th August Evening Shift
INTEGER+4 / -12021
A metal surface is exposed to 500 nm radiation. The threshold frequency of the metal for photoelectric current is 4.3 \(\times\) 1014 Hz. The velocity of ejected electron is ____________ \(\times\) 105 ms\(-\)1 (Nearest integer)
[Use : h = 6.63 \(\times\) 10\(-\)34 Js, me = 9.0 \(\times\) 10\(-\)31 kg]
[Use : h = 6.63 \(\times\) 10\(-\)34 Js, me = 9.0 \(\times\) 10\(-\)31 kg]