What is the minimum frequency of light necessary to emit

It requires a photon with a minimum energy of 4.41 X 10^-14 J to emit electrons from sodium metal.

A) What is the minimum frequency of light necessary to emit electrons from sodium via the photoelectric effect?

B) What is the wavelength of this light?

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What is the minimum frequency of light necessary to emit : it requires a photon with a minimum energy of 4.41 x 10-14 j to emit electrons from sodium metal.a what is the minimum

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