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March 27, 2015

Homework Help: physics

Posted by ashley --- HELP PLEASEE!!! on Sunday, May 1, 2011 at 3:30pm.

A metal emits photoelectrons when yellow light is made to fall on it. Which of the following is correct when the metal is irradiated by a violet light?
Choose one answer.
a. The speed of electrons would increase.
b. The speed of electrons would decrease.
c. The number of electrons emitted would increase.
d. The number of electrons emitted would decrease.

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