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September 2, 2014

Homework Help: physics- Electromagnetic waves

Posted by Rams on Friday, May 11, 2012 at 11:03am.

A square piece of foil with area A = 5.0 10^-4 m^2 and mass m = 5.0 10^-5 kg is suspended along one edge and hangs under its own weight. When light is incident perpendicular to the foil,the foil bends and reaches an equilibrium angle of 2 degrees. If the light is completely reflected by the foil, what is the peak value of the electric field associated with the light?

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