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When ultraviolet light with a wavelength of 400 nm falls on a certain metal surface, the...

When ultraviolet light with a wavelength of 400 nm falls on a certain metal surface, the maximum kinetic energy of the emitted photoelectrons is 1.10 eV .

What is the maximum kinetic energy K_0 of the photoelectrons when light of wavelength 340 nm falls on the same surface?

Use h = 6.63×10−34 J⋅s for Planck's constant and c = 3.00×108 m/s for the speed of light and express your answer in electron volts.

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K_0 =

  

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