A UV lamp used to disinfect objects emits radiation with an rms electric field strength of 31 N/C. Calculate the energy absorbed by a circular target of radius 3 cm that is placed under the lamp for 310 seconds. (Give your answer in joules)

University Physics Volume 2
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ISBN:9781938168161
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Chapter16: Electromagnetic Waves
Section: Chapter Questions
Problem 54P: An incandescent light bulb emits only 2.6 W of its power as visible light. What is the rms electric...
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A UV lamp used to disinfect objects emits radiation with an rms electric field strength of 31 N/C. Calculate the energy absorbed by a circular target of radius 3 cm that is placed under the lamp for 310 seconds.
(Give your answer in joules)

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