Question 8

The photoelectric threshold wavelength of silver is $$3250 \times 10^{-10} m.$$ The velocity of the electron ejected from a silver surface by ultraviolet light of wavelength $$2536 \times 10^{-10} m$$ is
(Given $$h = 4.14 \times 10^{-15} eVs and c = 3 \times 10^8 ms^{-1})$$


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