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August 29, 2015

Homework Help: Physical science

Posted by Tamara on Monday, October 11, 2010 at 5:11pm.

The photo-electric effect has many practical applications.A photocell, used in burglar system such application.The work function of the metal used as a cathode in the photocell is 8,7 times 10^-19J. Calculate the velocity at which the electrons are emitted.

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