Dual Nature Of Light Question 194
Question: Light of wavelength 180 nm ejects photoelectron from a plate of a metal whose work function is 2 eV. If a uniform magnetic field of $ 5\times {{10}^{-5}} $ T is applied parallel to plate, what would be the radius (in metre) of the path followed by electrons ejected normally from the plate with maximum energy?
Solution:
Answer: 0.149
BETA
