a lightbulb is 50 cm from a mirror. It emits 1.3 W of visible light. A small
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a lightbulb is 50 cm from a mirror. It emits 1.3 W of visible light. A small barrier blocks the direct rays of light from the bulb from reaching a sensor 70 cm to the right, but not the reflected rays. What is the light intensity at the sensor?
Related Book For
Physics
ISBN: 978-0077339685
2nd edition
Authors: Alan Giambattista, Betty Richardson, Robert Richardson
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