一道英文化学题Find the velocity of an electron emitted by a metal whose _英语解答

一道英文化学题
Find the velocity of an electron emitted by a metal whose threshold frequency is 2.07×1014 when it is exposed to visible light of wavelength 5.24×10m.

人气：194 ℃　时间：2020-05-09 07:44:13

解答

临界频率是 2.07×1014 的金属暴露到波长为5.24×10m目视可见光时,发出的电子的速度是多少?
物理题目俺不会做