Wednesday
July 23, 2014

Homework Help: Physics

Posted by Laila on Sunday, April 21, 2013 at 9:00pm.

Photons of energy 12eV are incident on a metal. It is found that current flows from the metal until a stopping potential of 8.0V is applied.

If the wavelength of the incident photons is doubled, what is the maximum kinetic energy of the ejected electrons?

What is KEmax in eV.

Please someone help me on this...thank you.

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