February 21, 2017

Homework Help: AP Chemistry

Posted by qwerty123 on Wednesday, November 17, 2010 at 5:31pm.

A typical laser pointer is rated at 5.0 mW. It outputs red light with a wavelength of about 6300 Angstrom. How many photons of laser light will be emitted from the pointer if it is used 120 seconds.

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