32. Electromagnetic Waves
Radiation Pressure
Multiple Choice
Multiple ChoiceA radio transmits a wave with intensity 27.0 W/m2 towards a flat surface (perfectly reflecting) with area 2m2. Calculate the force and radiation pressure on the surface.
A
Pressure = 1.8×10−7Pa ; Force = 3.6×10−7N
B
Pressure = 9.0×10−8Pa ; Force = 1.8×10−7N
C
Pressure = 1.8×10−7Pa ; Force = 9.0×10−8N
D
Pressure = 9.0×10−8Pa ; Force = 3.6×10−7N
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