|
Which color laser was able to make the paper glow the most? Why?
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K.E. of Photoelectron
Was
Determined By:
| Flash |
The white light was unable to discharge the electroscope (eject the electrons) but the ultraviolet light could. Why???
The ultraviolet light had a higher frequency ....
... a higher energy.
b) nature of emitting metal
Typical Plot of Frequency of
Light vs. K.E. of
Photoelectron
| KE of Photoelectron |
 |
fo - Threshold Frequency - frequency below which no photoelectrons will be emitted
Below Threshold?
No Emission
Above Threshold?
Emission
Summary of
Photoelectric Effect
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