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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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