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Sahay Sir > Question Answers > MTG NEET Physics > Part 2 > Chapter 11 - Dual Nature of Radiation and Matter > Light described at a place by the equation E=(100V/M)×[sin(5×10^15 s^−1)t + sin(8×10^15 s^−1)t] falls on a metal surface having work function 2.0 eV. Calculate the maximum kinetic energy of the photo electrons

Light described at a place by the equation E=(100V/M)×[sin(5×10^15 s^−1)t + sin(8×10^15 s^−1)t] falls on a metal surface having work function 2.0 eV. Calculate the maximum kinetic energy of the photo electrons

Ultraviolet beam of wavelength 280 nm is incident on lithium surface of work function 2.5 eV. The maximum velocity of electron emitted from metal surface is