Suppose we use a light sensor to measure the change in intensity of reflected light from...
Suppose we use a light sensor to measure the change in intensity of reflected light from a light bulb as we move away from an extended object such as a piece of paper and then at a small circle of white paper on a black background.
a. Will the changes in intensity be different for the two objects?
b. Where does the light reaching the sensor originate? Describe the complete path it takes from the source to the sensor.
c. For which object would the intensity fall off faster from its initial value? Was it much faster? Explain why this occurs.
d. Would the rays close to the extended object (sheet of paper) be diverging or parallel rays?
e. Would the rays from the small white disk be diverging or parallel rays?
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Suppose we use a light sensor to measure the change in intensity
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