The threshold energy for photoelectric emission of electrons from a metal is 3.056x10-15 joule.
If light of 4000Ao wavelength is used, will the electrons be ejected or not?
Answers
Answered by
10
E=hc/wavelength=1240ev-nm/4000A= 1240x1.6x 10^-19x10/4000=31x16x10^-21j. so electron will not eject
Answered by
1
Answer:
Work function is the minimum energy required to eject an electron from the metal surface.
work function=hv°
Threshold frequency=c/^=3×10^8/330×10^-9=1×10^17/11=8^-1
work function=6.626×10^-34×10^17/11=6×10^-19J
please sisi mark me brainliest
Explanation:
Similar questions