Problem: Data for the photoelectric effect of silver are given in the following table.Frequency of incident radiation (1015 s-1)22.533.54Kinetic energy of ejected electrons (10-19 J)5.909.2112.5215.8419.15Using these data, find the experimentally determined value of Planck's constant, h, and the threshold frequency, v0, for silver. 

FREE Expert Solution

Recall: Photoelectric Effect

EKE, photons=Eincident-EthresholdEincident=hv


This means:

EKE, photons=hv-Ethreshold


Let x = frequency of incident radiation, y = KE of ejected electrons:

x (1015 s–1)

y (10–19 J)

2

5.90

2.5

9.21

3

12.52

3.5

15.84

4

19.15

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Problem Details

Data for the photoelectric effect of silver are given in the following table.

Frequency of incident radiation (1015 s-1)

2

2.5

3

3.5

4


Kinetic energy of ejected electrons (10-19 J)

5.90

9.21

12.52

15.84

19.15


Using these data, find the experimentally determined value of Planck's constant, h, and the threshold frequency, v0, for silver. 

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