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Radiation with a wavelength of 238 nm shines on a metal surface and ejects electrons that have a maximum speed of 3.75x10⁵ m/s. What minimum frequency of light is need to eject any electrons? a. 1.16x10¹⁵ Hz b. 1.26x10¹⁵ Hz c. 1.36x10¹⁵ Hz d. 1.46x10¹⁵ Hz e. 1.56x10¹⁵ Hz
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