procedure 3: http://www.physics.qc.edu/files.php?attach=254 Refer to procedure 3
ID: 2018854 • Letter: P
Question
procedure 3:http://www.physics.qc.edu/files.php?attach=254
Refer to procedure 3.
a) let v be the maximum speed of the emitted photoelectrons, and n be the number of photoelectrons emitted per seond. If the filter is changed from orange to yellow, then:
v increases, n increases
v remains the same, n decreases
v remains the same, n increases
v increases, n remains the same
v decreases, n remains the same
v remains the same, n remains the same
v increases, n decreases
v decreases, n increases
v decreases, n remains the same
b) If the laser you used is replaced by a much brighter laser, then
v increases, n remains the same
v increases, n decreases
v decreases, n remains the same
v decreases, n remains the same
v remains the same, n decreases
v decreases, n increases
v increases, n increases
v remains the same, n remains the same
v remains the same, n increases
Explanation / Answer
a. yellow has shorter wavelength than orange so velocity increase, n remains same answer is v increases, n remains the same b. velocity stays same and n increases...more power = more electrons emitted
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