Reference no: EM132535946
To demonstrate the photoelectric effect, an electroscope is charged with electrons. Light from a flashlight is focused on the electroscope. An ultraviolet (UV) light is subsequently used in the same experiment.
The intensity of both types of light can be increased or decreased. Based on this information, answer the next six questions.
-Describe what is observed in these two cases (using the flashlight and using UV light) in terms of a possible characteristic of light.
-What conclusion is drawn from this experiment and why?
-What would happen to the charge on the electroscope if the intensity of the flashlight shining on the electroscope was increased?
-What would happen to the charge on the electroscope if the intensity of the UV light shining on the electroscope was increased?
-What other types of light could be expected to discharge the electroscope and why?
-If the experiment was repeated again with the electroscope positively charged, what do you predict would happen and why?
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